Accident Piper PA-44-180 Seminole N274ER,
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ASN Wikibase Occurrence # 991
 
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Date:Wednesday 14 November 2007
Time:13:45
Type:Silhouette image of generic PA44 model; specific model in this crash may look slightly different    
Piper PA-44-180 Seminole
Owner/operator:Flying Vikings
Registration: N274ER
MSN: 44-7995083
Year of manufacture:1978
Total airframe hrs:13027 hours
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 Executive Airport, CA (HWD/KHWD)
Destination airport:Byron, CA (C83)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
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.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: SEA08LA029
Status: Investigation completed
Duration:
Download report: Final report

Sources:

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

Location

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]
17-Nov-2022 19:50 Ron Averes Updated [Aircraft type, Departure airport]

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