Airservices manages enquiries and complaints about aircraft noise and operations through the Noise Complaints and Information Service (NCIS). The information below is collected by the NCIS for the purpose of complaint management, analysis of issues and identification of causal factors. For this reason we refer to ‘complainants’ and ‘issues’. Complainants are people who contacted the NCIS. While some people submitted enquiries or comments rather than complaints, all are referred to as “complainants”. Issues are the primary concern they raised.
Changes to our complaint-reporting format
The new interactive reporting below (effective October 2019) will be monthly, rather than quarterly. New data will be available on the 10th business day of each month.
Use this interactive tool to explore the issues raised by residents from different suburbs. Read an explanation of issues and classifications used in complaint reporting.
Help is provided on both the Complainants and Issues and Classification Screens in the bottom right hand corner of the screen.
If the NCIS have identified something new or unusual in the data, an explanation will be provided in a dated accordion below the interactive reporting. Previous quarterly reporting to January 2016 is under the accordion “Archived”. Yearly reviews of complainant numbers and issues will continue to be provided.
Note: monthly complaints data describes the complaints lodged in that calendar month. Depending on when in the month the matter was lodged, the investigation may not have been completed within the same month. Where an investigation reveals that the issue or classification initially assigned to the matter was not the most appropriate one, this will be corrected. This may result in incremental changes to issue or classification counts for a previous month. Additionally, complainant numbers are now for each month. Previously if a complainant contacted the NCIS each month in a quarter that was reported as one complainant, if you are adding the number of complainants each month, this may not provide a realistic interpretation of the total number of complainants. If you select a month where there were no complainants, nothing will be displayed.
The following tabs contain our archived complaint reports
There were ten individual complainants for 2020; this is a decrease from 25 complainants in 2019 and 35 complainants in 2018.
Chart 1: 2020 monthly complainant numbers with three-year average per month
Chart 2: Complainant numbers 2016 to 2020
In 2020, residents raised eight issues, with the main issue remaining Helicopter operations. These operations affected 34 percent of complainants.
Chart 3: Issues and percentage of complainants affected 2020.
Chart 4: Comparison of the main Issues and number of complainants affected 2018 to 2020
In 2020, Helicopter operations were a concern to four residents. Normal operations to and from the airport disturbed two residents, and two were disturbed by emergency services operations.
Standard flight path movements
In 2020, Standard flight path movements were a concern to two residents. Runway 15 departures were a concern to a resident in Cairns North, while multiple runway directions disturbed a Holloways Beach resident.
The military activity was an aircraft conducting training at the airport. Military aircraft are required to remain familiar with civil procedures and conduct training across Australia as required.
Runway closure was due to the airport’s runway overlay project, the issue of other was a request for the ANEF, this and the Ground Running issue were referred to the airport.
Residents from six suburbs contacted the NCIS in 2020. Four suburbs recorded a single complainant.
Aeroglen and Holloways Beach recorded three complainants each.
Ground running and helicopter operations, both standard and emergency services, disturbed Aeroglen residents. The main concern with ground running and the emergency services operation were the times of the disturbance in the early hours of the morning.
Holloways Beach residents raised concerns with Standard and Unusual movements, Military operations and general aviation aircraft. The main concerns were aircraft not on the usual flight path, a missed approach due to weather and the increased noise of the military jets.
Chart 3: Comparison of Suburbs with complainant numbers for 2018 to 2020
There were 25 individual complainants for 2019; this is a decrease from 35 complainants in 2018.
Chart 1 provides a comparison of complainant numbers for each quarter from 2016 to 2017.
Chart 1: Comparison of quarterly complainant numbers 2016 to 2019
The main issue in 2019 was Helicopter operations affecting 36 percent of complainants. Standard flight path movements, General aviation traffic and Ground running were the other issues raised and these were of equal concern to residents.
Chart 2: Comparison of the main Issues of 2019, number of complainants affected with 2016, 2017 and 2018
Helicopter operations were a concern to nine residents in 2019 this is consistent with 2018. Normal helicopter operations to and from the airport were the main concern to residents, affecting 56 percent of these complainants. Emergency services operations were a concern to 33 percent, while helicopters conducting aerial work was a concern of a single resident.
Standard flight path movements
Standard flight path movements affected five residents in 2019. Runway 15 operations caused the most concern to residents affecting 80 percent of these complainants. Residents were equally concerned with Runway 15 departures and arrivals.
General aviation aircraft
These operations were a concern to four residents. Three residents were affected by normal operations tracking to and from the airport, and one resident was affected by aerial work.
Ground running affected three residents in Aeroglen, which is adjacent to the airport. Ground running is outside the remit of Airservices and is referred to the airport.
Complainants in 2019 were from 10 suburbs. Five suburbs recorded a single complainant while three suburbs recorded five or more complainants.
The suburbs recording the most complainants in 2019 were Aeroglen with six, while Machans Beach and Holloways Beach each recorded five complainants.
The two main concerns for Aeroglen residents were ground running and helicopter operations. Both concerns were raised by three residents. Three residents also raised concerns with emergency operations. The late night hour of these operations was also a concern.
Two residents of Holloways Beach were concerned with standard flight path movements. Other concerns were with military flights, and fuel odour.
Two residents of Machans Beach were concerned with general aviation traffic while another asked questions on the capability of the airport with large jet aircraft. Helicopter operations and Runway 15 arrivals, were also noted as a concern.
Chart 3 below provides a comparison of the suburbs recording the most complainants in 2019 with complainant numbers from 2016. This shows the suburb of Aeroglen has recorded the most complainants each year since 2017.
Chart 3: Comparison of Suburbs recording the most complainants in 2019, with complainant numbers for 2016, 2017 and 2018
There were eight complainants in quarter three 2019, which is an increase from seven complainants in quarter two. This is a decrease from 16 complainants in the same period last year.
The issues raised this quarter were; Helicopters, Standard flight path movements, Ground running, Night movements and Other issues.
Helicopter operations both day and night were the main concern to complainants. Emergency services operations at night and standard helicopter flight paths concerned two complainants each.
The complainant concerned with Standard flight path movements was concerned with the light aircraft arrival flight path for Runway 15. Light aircraft flight paths may vary due to traffic sequencing, and to ensure these aircraft avoid any wake turbulence behind larger aircraft.
The use of Runway 33 has started to increase in the later part of quarter three. Historically the use of Runway 33 increases in the warmer months.
Chart 1 below shows the comparison of issues raised in quarter three with issues raised in quarter two 2019.
Chart 1: Comparison of Issues raised in quarter three and quarter two 2019
Three separate suburbs recorded complainants in quarter three. Aeroglen recorded four complainants, Machans Beach recorded three complainants and Holloways Beach recorded a single complainant.
Three complainants from Aeroglen were concerned with Helicopter operations, two of these were regarding an emergency services operation on the same night. One complainant was concerned with Ground running of aircraft engines.
Machans Beach complainants were concerned with the flight path of light aircraft tracking towards Runway 15, the flight path of helicopter operations, and the capacity of the runway to land a B747.
The Holloways Beach resident was concerned with any fuel dumping by aircraft prior to landing.
There were seven complainants in quarter two 2019, which is an increase from four complainants in quarter one. This is a slight decrease from eight complainants in the same period last year.
The main reason for the increase in complainants was an increased concern with helicopter operations.
The issues raised this quarter were; Helicopters, Standard flight path movements, and Ground running.
Helicopter operations caused the main concern to complainants. One complainant was concerned with emergency services helicopter operations while other complainants were concerned with standard helicopter operations. These included helicopters on the visual flight rules (VFR) route to the north and west of the airport. The VFR route allows helicopters and light aircraft to transit the Cairns area and keep clear of any terrain and buildings. Helicopter circuit training to the west of the airport was a concern to Aeroglen residents. Circuits west of the Runway allow other aircraft to conduct arrivals and departures with minimal disruption to the traffic pattern.
Complainants concerned with Standard flight path movements were both concerned with Runway 15 departures. Greater use of Runway 15 with little or no use of Runway 33 historically occurs during the late autumn and winter months.
The complainant affected by Ground running was concerned with the late evening timing of the event.
Chart 1 below shows the comparison of issues raised in quarter two with issues raised in quarter one 2019.
Chart 1: Issues raised in quarter two 2019 compared to quarter one
No General aviation or military operations affected complainants this quarter.
Five separate suburbs recorded complainants in quarter two. Aeroglen recorded three complainants, while Cairns North, Freshwater, Machans Beach, and Smithfield each recorded a single complainant.
Aeroglen is located adjacent to the airport. Two complainants from this suburb were concerned with Helicopter operations and one complainant was concerned with Ground running of aircraft engines.
Cairns North is located to the south of the airport. Due to prevailing winds aircraft normally depart to the south of the airport off Runway 15, with aircraft turning to the east soon after take-off which minimises noise to residents of this area. The Cairns North resident was concerned with the noise from one departing international airline.
The Machans Beach resident was concerned with an increase in air traffic overhead, while both the Smithfield resident and Freshwater resident were concerned with helicopter operations, both advising of an increase in operations.
There were four complainants in quarter one 2019, which is a decrease from eight complainants in quarter four 2018. This is also a decrease from 12 complainants in quarter one 2018.
The issues raised this quarter were; General aviation traffic, Military and Helicopters.
As can be seen in Chart 1 below, complainant numbers for these issues were reduced from quarter four 2018.
Chart 1: Issues raised in quarter one 2019 compared to quarter four 2018
General aviation traffic affected two complainants. The concerns raised were due to an aircraft conducting an aerial survey in March, and aircraft conducting standard operations.
One complainant was concerned with a military aircraft conducting a practise missed-approach to Cairns Airport from the north. Military pilots must remain current on approaches at civilian airports, and these practise approaches occur frequently at numerous airports. This is a published and standard procedure.
Helicopter operations by emergency services affected one complainant. The early morning disturbance was the main area of concern, however these operations may occur at any time of the day or night.
Three separate suburbs recorded complainants in quarter one. Speewah recorded two complainants, while Kuranda and Holloways Beach, recorded a single complainant each.
Speewah was affected by both emergency services helicopters and by general aviation operating on standard routes.
Holloways Beach was affected by the military aircraft conducting the missed approach, and Kuranda was affected by the aircraft conducting a survey.
There were a total of 35 individual complainants for 2018, this is an increase from 23 complainants in 2017. Chart 1 provides a comparison of complainant numbers for each quarter from 2016 to 2017.
Chart 1: Comparison of quarterly complainant numbers 2016 to 2018
Four main issues were raised in 2018. Chart 2 provides a comparison of these main issues and the number of complainants affected with 2016 and 2017.
Chart 2: Comparison of 2018 main Issues and number of complainants with 2016 and 2017
Standard flight path movements
Standard flight path movements affected 14 residents in 2018. Complainants were recorded for all runways for both arrivals and departures. Runway 15 operations caused the most concern to residents affecting 57 percent of these complainants. Residents were equally concerned with Runway 15 departures and arrivals.
Helicopter operations were a concern to nine residents in 2018, this is an increase from five residents in 2017. Normal helicopter operations to and from the airport were the main concern to residents, affecting 66 percent of these complainants. Emergency services operation, helicopters conducting aerial work and the altitude of the helicopter were the concern of a single resident each.
General aviation aircraft
These operations were a concern to six residents. Four residents were affected by aerial work, such as survey mapping and two residents were affected by normal operations tracking to and from the airport.
Ground running affected six residents in close proximity to the airport. These included four residents in Aeroglen and a single resident each of Cairns and Edge Hill.
The suburbs recording the most complainants in 2018 were Aeroglen and Cairns North with eight and five complainants respectively. Chart 3 below provides a comparison of the suburbs recording the most complainants in 2018 with complainant numbers for 2016 and 2017. This shows the suburbs of Aeroglen and Cairns North recording the most complainants for both 2018 and 2017.
Cairns and Holloways Beach recorded three complainants each and two complainants were recorded in Yorkeys Knob, Machans Beach, Clifton Beach and Kuranda.
The main concern to Aeroglen residents was helicopter operations affecting five residents, with ground running affecting four residents. It is important to note that a single resident maybe affected by one or more issues.
Cairns North residents were all affected by standard flight path movements.
Sixteen separate suburbs recorded complainants, with eight recording a single complainant.
Chart 3: Comparison of Suburbs recording the most complainants in 2018, with complainant numbers for 2016 and 2017
There were eight complainants in quarter four, which is a significant decrease from 16 in quarter three. There were approximately 1800 fewer aircraft movements in quarter four than quarter three, this could be one reason for the corresponding decrease in complainants.
There have been 35 individual complainants for the 2018 calendar year.
The main issues this quarter were General aviation traffic, Standard flight path movements and Helicopters.
General aviation traffic affected three complainants and the main concern were aircraft conducting aerial surveys in October and December.
Both Runway 15 departures and Runway 33 arrivals affected the two complainants under the issue of Standard flight path movements.
Helicopter operations affected two complainants. These operations were normal arrival and departures from the airport.
Five separate suburbs recorded complainants in quarter four. Aeroglen, Cairns North and Kuranda recorded two complainants each. Clifton Beach and Manunda recorded a single complainant each.
Aeroglen and Clifton Beach were affected by helicopter operations.
Cairns North was affected by Standard flight path movements. General aviation traffic affected the residents of Kuranda and Manunda. The survey operations were conducted in the Kuranda area.
There were 16 complainants in quarter three which is an increase from eight complainants in both quarter two 2018 and quarter three 2017.
No specific issue could be determined for the increase in complainant numbers.
The main issues this quarter were Standard flight path movements, with seven complainants and Helicopters with five complainants. There has been a general increase in numbers of complainants raising most issues this quarter, as seen in the Chart 1 below.
Chart 1: Comparison of Issues and complainant numbers Q1, Q2 and Q3 2018
Standard flight path movements
The majority of complainants under this issue were affected by Runway 15 operations.
Issues of concern to complainants were:
- normal helicopter operations including emergency services operations
- the low altitude of the operations
- airwork which included aerial ant baiting
- the normal Visual flight path route, which ensures helicopters remain separated from jet aircraft on final approach to Runway 15
- early morning operations.
Complainants from 11 separate suburbs were affected by aircraft operations during quarter three. This is an increase in the number of suburbs from five in the previous two quarters; but is indicative of the general increase in complainant numbers this quarter.
The suburbs recording the most complainants were Aeroglen with four complainants and Holloways Beach with three complainants. Nine suburbs recorded a single complainant.
Aeroglen residents were affected by helicopter operations and Runway 15 operations. One complainant also queried noise monitoring and WebTrak issues.
Holloways Beach residents were affected by Runway 15 arrivals and Runway 33 departures with two of the complainants commenting on late night or early morning operations.
The following suburbs recorded a complainant for the first time in 2018.
- Edge Hill was affected by ground running of engines at the airport
- Kuranda was disturbed by an aircraft conducting a survey over the area in August
- Palm Cove noticed helicopters operating along the normal Visual flight path route
- Redlynch was affected by aerial ant baiting
- Trinity Beach was affected by standard flight path movements and
- Whitfield was concerned with the track of an aircraft involved parachute operations that was tracking over the suburb.
There were eight complainants in quarter two 2018 which is a decrease from 12 complainants in quarter one 2018. However, this is an increase from three complainants in the same quarter in 2017.
The main issues this quarter were Standard flight path movements, with four complainants and Helicopters with three complainants. It is important to remember that a single complainant may have two or more issues.
Chart 1: Issues and number of complainants affected Q2 2018
Standard flight path movements
The complainants under this issue were affected by Runway 15 arrivals. Historically the use of Runway 15 increases in quarter two.
All of the complainants affected by helicopter operations resided in Aeroglen. Concerns included emergency services operations and the low altitude of the operations.
The operation of concern under the issue of Military, was a practised missed approach which was conducted in June. Military pilots must remain current on approaches at civilian airports and this is a published and standard procedure.
Five separate suburbs were affected by aircraft operations during quarter two 2018 and this is consistent with quarter one 2018, although some of the suburbs are different. This can be seen in Chart 2 below.
Chart 2: Comparison of suburbs and number of complainants Q1 and Q2 2018.
Aeroglen residents were affected by ground running at the airport and helicopter operations.
Clifton Beach, Koah and Yorkeys Knob residents were affected by Runway 15 arrivals, while the resident of Holloways Beach was affected by the military practise missed approach.
There were 12 complainants in quarter one which is an increase from eight complainants in quarter four of 2017. This is also an increase in complainants from quarter one 2017, which had seven complainants.
The main reason for the increase in complainants this quarter was due to an increase in ground running complaints at the airport, as can be seen in Chart 1 below.
Chart 1: Issues comparison, quarter 1 2018 and quarter 4 2017
Four complainants were affected by ground running over the quarter. All complainants were in suburbs adjacent to the airport. Information on ground running can be found on our Ground Running Factsheet, and also in April-June 2017 tab.
General aviation traffic
Three complainants raised the issue of general aviation traffic and an increase in their area. Inclement weather over the quarter required diversions by all types of aircraft which is a likely cause of this increase.
Chinese New Year
Special traffic management procedures were in place for Chinese New Year, due to the expected (and actual) increase of helicopter movements during February. During this time helicopters departed from the east side of the runway in a newly created temporary helicopter area. In February there were approximately 1000 extra helicopter movements compared to the other months in this quarter. This was not reflected by a substantial increase in helicopter complaints.
Five separate suburbs recorded complainants during quarter one, as seen in Chart 2 below.
Chart 2: Suburbs
The majority of residents of Aeroglen and Cairns were affected by ground running; however helicopter operations were also a concern to both suburbs.
Cairns North was affected by Standard flight path movements from both Runway 15 departures and Runway 33 arrivals. Machans Beach was affected by General aviation traffic.
There were a total of 23 individual complainants for the year which is a decrease from 43 complainants in 2016.
In 2017 the two main issues raised in 2017 were Standard Flight Path Movements and Helicopters.
Chart 1: Issues and number of complainants who raised them in 2017
Runway 15 operations, including both arrivals and departures, was raised by 10 complainants or 44 percent of all complainants. The prevalence of complaints about this runway is due to it being the primary runway in use at throughout the year due to the prevailing winds. However use of Runway 33 does increase in the warmer months of the year. This can be seen in Chart 2.
Chart 2: Runway Usage 2015-2017
The suburbs with the most complainants in 2017 were Aeroglen, Cairns North and Yorkeys Knob.
Aeroglen is the suburb in which the airport is situated. The complainants in this suburb have raised a number of issues including Ground running, Helicopters, and Standard flight path movements.
Cairns North is located immediately to the south of the airport and is a suburb overflown by departures from Runway 15 and arrivals to Runway 33.
Yorkeys Knob is located to the north of the airport and is overflown by aircraft on approach to Runway 15 and aircraft on departure from Runway 33.
Chart 3: Suburb and complainant comparison 2017 and 2016
There were eight complainants in quarter four which is consistent with quarter three. There were 23 individual complainants in 2017.
Chart 1: Issues
Three complainants raised flight path issues in quarter four. The complainants all came from suburbs in close vicinity to the airport and are affected by aircraft movements on existing flight paths. There have been no changes to flight paths over these areas.
Two complainants raised the issue of military movements. The complainants were both affected by a military FA/18 aircraft conducting practise approaches to the airport. Military aircraft routinely conduct practise approaches at civil airports, as military pilots must remain current on using civilian navigation aids. Civilian navigation aids are generally not located at military airports.
Two complainants raised the issue of night movements, specifically in regard to early morning flights. Due to daylight saving in the southern states flight schedules may alter in the warmer months with some aircraft to southern destinations departing one hour earlier.
Six separate suburbs were affected by aircraft operations during quarter four. Aeroglen, Cairns North, and Holloways Beach, each recorded two complainants. The majority of complainants in these suburbs were affected by standard flight path movements. Night Movements affected complainants in the suburbs of Cairns North and Trinity Beach due to their close proximity to the airport.
There were eight individual complainants for the third quarter of 2017. This is an increase from three complainants in the second quarter of 2017, and well below the 18 complainants recorded for the third quarter of 2016. There have been 16 individual complainants for the year-to-date.
The NCIS continues to refine how issues are classified and applied. We have recently decided to classify all complaints regarding movements that are tracking on the relevant flight path and within the normal altitudes as Standard Flight Path Movements. In our reporting to the community this will provide greater clarity about what can be expected in the normal course of operations at the airport. Additionally the issue of Unusual Movements will be used for commercial aircraft operating outside their usual flight paths at major airports. Examples of unusual movements include, weather diversions, traffic management, radar departures, direct tracking and missed approaches. The complaint classified this way in this quarter, as shown in Chart 1 below, was due to direct tracking.
The Night Movements category has been expanded beyond the previous 11pm – 6am hours to cover complainants who advise the NCIS that they have been disturbed by air traffic at any hour of the night.
Chart 1: Issues
As shown in Chart 2 below, the main issue this quarter was Runway 15 arrivals, with 50 per cent of complainants concerned about flight path movements affected by these operations. Historically due to seasonal winds the use of Runway 15 peaks in July and August and then declines over the following months as the use of Runway 33 increases.
The sub classification of multiple runway directions is used when a complainants’ location is such that they can be affected by the use of several different runways or arrivals and departures from the same runway.
Chart 2: Flight path issues
Residents from six separate suburbs were affected during quarter three. Cairns North and Yorkeys Knob each recorded two complainants, while Smithfield, Speewah, Machans Beach and Koah recorded a single complainant each.
Cairns North was affected by Runway 15 departures, while Yorkeys Knob and Koah were affected by Runway 15 arrivals.
Smithfield and Speewah residents were affected by helicopter operations in the flight corridor and by emergency services operations.
There were three individual complainants for the second quarter of 2017, down from seven in the first quarter of 2017, and well below the 14 complainants in the second quarter of 2016. There have been 10 individual complainants for the year-to-date.
Issues and suburbs
The main issue in the quarter was ground running, which was raised by two complainants. Ground running is the term used to refer to noise from an aircraft engine, which is being tested while the aircraft is stationary on the tarmac. One complainant is located at a neighbouring suburb while the other frequents the airport location, and the complaint relates to noise experienced while at the airport. Both complainants were referred to the airport as the airport is responsible noise associated with ground-running.
At times piston engine aircraft conducting pre-flight checks can be mistaken for ground-running on the airport. These checks are usually conducted in close proximity to the end of the runway prior to departure, and are a safety requirement.
The issue of night movements was raised by a resident of Smithfield however the complainant spends considerable amounts of time at Holloways Beach and the complaint relates to aircraft noise at that location during the hours of 11pm to 6am.
Each complainant resided in a separate suburb.
Chart 1: Issues
There were seven individual complainants for the first quarter of 2017, down from 11 in the fourth quarter of 2016.
Issues and suburbs
The main issues in quarter 1 were related to flight paths. Five complainants raised concerns including increased frequency of movements, a perception that something had changed and altitude. All these concerns were related to departures from Runway 15. All complainants were from suburbs immediately around the airport.
Chart 1: Issues
The suburb with the most complainants was Cairns North with three complainants. Cairns North is under the departure flight path for aircraft departing Runway 15. All the complainants raised concerns with Runway 15 Departures including an increased frequency of use and aircraft being too low.
There were a total of 43 individual complainants in 2016.
Chart 1: Issues raised in 2016
The two main issues in 2016 were helicopter activities (13 complainants) and flight paths (11 complainants). Concerns raised about flight paths included perceptions that there had been a change or the desire that a flight path be moved. Seven complainants raising this issue were affected by arrivals to Runway 15 from the north, one by departures from Runway 15 towards the south, and three by departures from Runway 33 towards the north.
Runway usage does change throughout the year, with Runway 33 movements increasing in the warmer months due to the seasonal wind patterns. However Runway 15 remains the predominant runway in use all year round, as can be seen in the Runway Usage Chart below.
Chart 2: Runway Usage 2014-2016
Chart 3: Suburbs 2016
The suburbs where most complainants resided in 2016 were Holloways Beach (seven complainants), Machans Beach (six complainants), and Aeroglen, Kuranda and Trinity Beach with four complainants each. The aircraft movements at Holloways Beach and Machans Beach were discussed in quarter 3 2016.
Aeroglen is the suburb in which the airport is situated. The complainants from this area have raised a variety of issues including helicopter operations, airport operations such as ground running, and military aircraft operations.
Kuranda is northwest of the airport and is affected by arrivals tracking from southern airports to land on Runway 15. It is also affected by some departures off both Runways 15 and 33 if their destination is to the west or northwest. Complainants from this area in 2016 have raised the issue of military aircraft operations, helicopters, and aircraft involved in survey airwork.
Trinity Beach is further north of the airport than Holloways Beach and Machans Beach and is overflown by aircraft approaching to land on Runway 15 using the instrument landing system. All complainants from the suburb were concerned with the amount of air traffic on this approach and a belief that the instrument landing system would be used only in poor weather. While the instrument landing system is always used in bad weather, it can also be used in good weather. International airlines will often prefer this type of approach because it is standard around the world.
There were 11 complainants in quarter four, down from 18 in quarter three.
Four complainants raised the issue of increased traffic as a result of parachute skydiving operations that occur in the designated area (known as Danger Area 762 or D762) to the south of the city. This activity has been undertaken in that area for a number of years.
The complainants advised that the increased traffic to and from the drop zone was the problem, as was the increased use of the existing Visual Flight Rules corridor to move the aircraft involved in the skydiving operation.
Three complainants raised flight path issues in quarter four. All complainants were from Holloways Beach, with two concerned with Runway 33 departures and one concerned with Runway 15 arrivals. There have been no changes to flight paths over the area. Due to the proximity of Holloways Beach to the airport, the area experiences traffic from both arrivals for Runway 15 and departures off Runway 33.
The suburbs with the most complainants in quarter four were Holloways Beach and Kuranda, each with three complainants.
There were 18 complainants during the third quarter, a slight increase from quarter two. A total of 34 individual complainants have contacted NCIS since 1 January 2016.
Seven complainants were concerned about helicopter movements.
There was a slight increase in concerns about Emergency Services helicopter operations from the previous quarter. Emergency Services operations are on call 24 hours a day and operate when required. They are provided with every assistance in their operation and this will often include direct tracking, that is, the most direct route to and from their mission. This may place them over suburbs that are not normally affected by aircraft noise.
In September there was a maritime emergency off the coast to the north east. This event did affect the flight paths of both fixed wing aircraft and helicopters as they were diverted to provide assistance.
Chart 1: Breakdown of helicopter issue
Due to the navigation rationalisation project which includes the decommissioning of ground-based navigation aids in favour of satellite technology, Cairns Airport is now one of the few airports in far north Queensland with a non-directional beacon (NDB). Pilots are required to maintain currency on this type of approach and will request it at times for this reason. When this occurs residents will notice aircraft in different flight patterns. This is not a new flight path as it has been in use for many years, however, pilots generally use the more advanced navigation aids available at Cairns Airport.
The two suburbs that recorded the most complainants in this quarter were Machans Beach (4) and Holloways Beach (5), both located immediately to the north of the Airport. Both of these suburbs are listed as noise sensitive areas in Cairns Noise Abatement Procedures.
Due to the close proximity of Machans Beach to the Airport residents will notice any change in aircraft operations and whether or not they are on the expected flight paths. During this quarter residents were mainly concerned about helicopter operations to and from the airport and the altitude of these aircraft.
Holloways Beach residents were mainly concerned about departing aircraft. Typically, from July the use of Runway 33 begins to increase due to seasonal wind patterns, which means suburbs to the north of the airport experience more departing aircraft.
Both suburbs can be affected when air traffic control are required to expedite aircraft for arrival or departure for traffic management purposes.
There were 14 complainants during the second quarter compared to eight in the first quarter. In total, 19 individual complainants contacted NCIS between 1 January 2016 and 30 June 2016.
Chart 1: Issues raised this quarter
The issue highlighted most was the flight path for arrivals to Runway 15. Five complainants were concerned that the flight path was located over their area, or felt that the flight path had changed, or was different from usual.
There have been no changes to designated flight paths for Cairns however changing seasonal weather patterns create the perception that flight paths have changed. During this quarter the use of Runway 15 increased compared to the previous quarter. This is the usual seasonal pattern.
While flight paths have not changed in Cairns on occasion air traffic control direct an aircraft off the usual flight path to ensure that safe distances are maintained between aircraft. This may occur during very busy periods when the airspace is congested to ensure the safe and efficient flow of air traffic. It may also occur if there are emergency services operations such as police, medical or ambulance helicopters occurring in the vicinity of a flight path.
Chart 2: Breakdown of change of, different or location of flight path issue
“YBCS” is the airport code for Cairns. The number “15” refers to the runway direction
Issues and suburbs
There were eight complainants in the first quarter. Five complainants raised the issue of helicopter movements. The majority of complainants were from suburbs adjacent to the airport and were affected by helicopters arriving to and departing from the airport.
Helicopters will be at lower levels when in the process of taking-off and landing, but once established they will not fly over populated areas below 1000 feet. Helicopters may fly below these levels within specified areas, though most helicopters are forbidden from flying at less than 500 feet (152 metres) above the ground, unless during take-off or landing. Occasionally, helicopters need to fly at lower levels for law enforcement, military or search and rescue.
Helicopters are often used for services that are of benefit to communities, such as fire-fighting, crime prevention, search and rescue and media coverage. Helicopter operations require flexibility and can be required to fly over residential areas that are rarely flown over by other aircraft.
Chart 1: Breakdown of Helicopter Issues