Britten-Norman Trislander crash, Jul 5, 2009, Great Barri...
Britten-Norman Trislander accident on July 5, 2009 near Great Barrier Island, Auckland Council, New Zealand with no fatalities. Cause: Failure of the...
- Date: July 5, 2009
- Aircraft: Britten-Norman Trislander
- Location: Great Barrier Island, Auckland Council, New Zealand
- Fatalities: 0
- Phase of flight: Takeoff and climb
- Cause: Failure of the crankshaft propeller flange from high-cycle fatigue cracking that began with undetected corrosion. An overhaul-life discrepancy in overseas component records meant the crankshaft had run past its life.
A Trislander on a scheduled flight from Great Barrier Island to Auckland lost the propeller assembly from its right engine just after takeoff. The propeller struck the fuselage, shattering the cabin Perspex, and the crew flew back and landed the damaged aircraft safely. Three passengers received minor cuts, and the TAIC traced the failure to fatigue cracking in the crankshaft flange that had developed from undetected corrosion.