What’s happening?
Residents across northern Queensland may notice a twin-engine aircraft following unusual flight patterns from Saturday, 1 August.
The Civil Aviation Safety Authority (CASA) will inspect instrument approach procedures at several aerodromes across the region.
The checks will confirm that flight paths remain safe and nearby hazards are correctly marked on aviation charts.
A Beechcraft King Air will visit the following locations:
- Saturday, 1 August: Blossom Banks, Hamilton Island and Proserpine Whitsunday Coast
- Sunday, 2 August: Bowen, Palm Island, Ingham and Townsville
- Monday, 3 August: Townsville, Tully Hospital, Innisfail Mundoo, Atherton, Mareeba and Cairns
- Wednesday, 5 August: Mossman Hospital, Wujal Wujal and Cooktown
- Thursday, 6 August: Chillagoe and Georgetown
Why it matters?
Instrument procedures guide pilots during approaches, particularly when visibility is poor or weather conditions are difficult.
CASA uses these checks to confirm existing hazards remain correctly recorded. Crews also look for new obstacles near flight paths.
Possible hazards include trees, towers, masts and buildings that could place arriving or departing aircraft at risk.
Local Impact
People around Hamilton Island and Proserpine Whitsunday Coast may see the aircraft on Saturday, 1 August.
Bowen residents could notice similar activity on Sunday, 2 August.
These locations serve communities and visitors across the Whitsundays, north of Mackay. The checks may involve repeated approaches and unfamiliar flight patterns.
Residents may also see the aircraft operating lower than regular passenger flights during parts of the assessment.
By the numbers
- Instrument approach procedures must undergo safety checks every five years under CASA regulations.
- The aircraft may operate across an area extending 40 kilometres from each aerodrome.
- During some checks, the Beechcraft King Air may fly only several hundred feet above the ground.
Zoom In
Low-level flying allows crews to compare aviation charts with the current landscape around each aerodrome.
This helps confirm the location and height of structures, trees and other possible hazards.
The repeated or unusual movements form part of the assessment and do not indicate an emergency.
Zoom Out
The inspection program covers aerodromes, regional airports and hospital landing sites across northern Queensland.
Regular assessments account for changes around flight paths, including new buildings, taller vegetation or newly installed towers.
Accurate charts give pilots reliable information when approaching aerodromes throughout the region.
What To Look For Next?
Weather or other operating conditions may affect the planned schedule between 1 and 6 August.
CASA will complete any postponed checks as soon as conditions allow.

