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Failed compressor blades lead to engine surge and vibrations occurrence
Key points: Worn bushings led to fretting damage on a lever arm in the fourth-stage variable stator vanes within a General Electric CF6-80E1 engine’s high-pressure compressor…
Engine fan blade failure leads to enhanced inspection processes
A fan blade failure in an Airbus A330’s Rolls-Royce Trent 700 engine due to a fatigue crack has led to enhanced inspection processes and technical solutions that reduce the likelihood of…
Departure procedures misunderstanding contributes to loss of separation incident
Key points: Boeing 777 turned right on departure from Sydney Airport instead of left, resulting in a loss of separation with an ATR72 that had departed from the parallel runway…
Abnormal engine operation can be an indication of a developing fault
Key points: Flight crew elected to return to Perth after detecting a popping or banging sound from the left engine Managing partial power loss a more complex scenario than a…
Missing self-locking nut leads to loss of cyclic control and in-flight break-up
Key points: Missing nut allowed bolt to separate from bellcrank in cyclic control assembly Self-locking nut was likely either not reinstalled or inadequately torqued after…
Prevent and detect carbon monoxide in aircraft
The Australian Transport Safety Bureau is advising owners, operators, pilots and maintainers of piston-engine aircraft to take measures to detect the presence of, and prevent the entry of,…
Driveshaft failure leads to a hard landing
Key points: Fatigue crack causes driveshaft failure Pilot promptly initiated precautionary landing Manufacturer recommends driveshaft replacement after 5,000 hours …
Hovering the AS350 without hydraulics can lead to a rapid loss of control, investigation reinforces
Key points: Helicopter came into a high hover in a crosswind during a hydraulics-off training exercise Hovering the AS350 without hydraulics can lead to a rapid loss of control…
ATSB releases Broome R44 helicopter accident update
Key points: Helicopter’s tail assembly separated in-flight Cause of the separation is currently unknown R44 pilots who experience unusual vibrations through the tail rotor…
Freight train crew unaware of flooded rail bridge
A freight train unexpectedly encountered and entered floodwaters across a rail bridge near Tully, Queensland, highlighting the importance of weather monitoring stations at known flood…