Causes

Metal fatigue in airline accidents

Official investigators identified metal fatigue in 2 of the incidents we cover, from 2011 to 2026. Each account explains how it arose in that case. A shared topic does not mean the same cause.

Last updated

Metal fatigue incident summary
DateFlightAircraftLocationFatalitiesReport status
1 April 2026Link Airways Saab 340 VH-VEFSaab 340BMelbourne Airport, Victoria; parking bay lead-inNone reportedLEVEL 3 Final report
1 April 2011Southwest Flight 812Boeing 737-3H4Near Yuma, Arizona; diverted to Yuma International Airport0LEVEL 3 Final report
Link Airways Saab 340B VH-VEF parked at Canberra Airport.Link Airways Saab 340B VH-VEF at Canberra Airport: Bidgee

Link Airways Saab 340 VH-VEF

A wheel rim fractured as the Link Airways Saab taxied to its Melbourne parking bay. Inspectors found a crack in the other wheel on the same gear leg.

Incident date:

LEVEL 3 Final report

Southwest Boeing 737 N632SW on the ground with an arrow marking the opening above the left wing.N632SW after landing, with the fuselage opening marked above the left wing: National Transportation Safety Board

Southwest Flight 812

Fatigue cracks linked along a poorly installed fuselage joint, opening the cabin at 34,000 feet. The crew descended and landed at Yuma.

Incident date:

LEVEL 3 Final report