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ASN Wikibase Occurrence # 991
Last updated: 21 April 2019
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Date:14-NOV-2007
Time:13:45
Type:Silhouette image of generic PA44 model; specific model in this crash may look slightly different
Piper PA-44-180
Owner/operator:Flying Vikings
Registration: N274ER
C/n / msn: 44-7995083
Fatalities:Fatalities: 0 / Occupants: 3
Aircraft damage: Substantial
Category:Accident
Location:Byron Airport (C83), near Byron, CA -   United States of America
Phase: Landing
Nature:Training
Departure airport:Hayward, CA (HWD)
Destination airport:Byron, CA (C83)
Investigating agency: NTSB
Narrative:
After touchdown during the landing roll, the flight instructor heard a "clunking" sound, followed by the airplane dropping slightly to the right. The flight instructor subsequently heard a second "clunk" as the airplane's right wing dropped to the runway. A post-accident examination revealed that the right main landing gear aft trunnion attach fitting had failed. A subsequent metallurgical examination revealed that although a fatigue region was identified on one of the 3 fracture surfaces, it was relatively small, and that the attach fitting most likely failed due to overload.



Probable Cause: The failure of the right main landing gear aft trunnion attach fitting due to overload during the landing roll.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20071206X01907&key=1


Revision history:

Date/timeContributorUpdates
25-Jan-2008 03:13 JINX Added
21-Dec-2016 19:13 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:14 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:16 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:20 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
04-Dec-2017 19:00 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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