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ASN Wikibase Occurrence # 164278
Last updated: 17 October 2021
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Time:14:25 LT
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA227-DC Metro 23
Owner/operator:Sharp Airlines
Registration: VH-UUB
MSN: DC-894B
Fatalities:Fatalities: 0 / Occupants: 12
Other fatalities:0
Aircraft damage: Substantial
Category:Serious incident
Location:Portland, VIC -   Australia
Phase: Landing
Nature:Passenger - Non-Scheduled/charter/Air Taxi
Departure airport:AVV/YMAV - Avalon
Destination airport:PTJ/YPOD - Portland
Investigating agency: ATSB
Loss of directional control on landing due to MLG torque link failures.

The runway excursion resulted from failure of the lower torque link attachment lug on the left main landing gearís yoke. This allowed the wheels to rotate through 90į with respect to the direction of aircraft travel and skid, producing a large braking effect on the left side.

The failure...resulted from pre-existing cracks that had progressively grown until the part had insufficient strength to support normal landing loads. The cracks initiated principally from areas of pitting corrosion in the lugís bore and were propagated by cyclic stresses imposed during operation.

Sources:ģnr=VH-UUB #flightsafety #aviationsafety

Accident investigation:
Investigating agency: ATSB
Status: Investigation completed
Download report: Final report



Photo of VH-UUB courtesy

Adelaide - International (YPAD / ADL)
13 October 2020; (c) Gavin Hughes

Revision history:

25-Feb-2014 12:13 Petropavlovsk Added
26-Feb-2014 00:16 Geno Updated [Operator, Total fatalities, Other fatalities, Location, Departure airport, Destination airport, Source]
22-Mar-2016 20:06 Aerossurance Updated [Time, Total occupants, Location, Nature, Source, Damage, Narrative]
23-Mar-2016 15:47 harro Updated [Aircraft type]
20-Feb-2021 11:40 Aerossurance Updated [Location, Source, Embed code, Accident report]
20-Feb-2021 11:40 Aerossurance Updated [Accident report]

Corrections or additions? ... Edit this accident description