ASN Wikibase Occurrence # 43243
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| Date: | Friday 17 November 2000 |
| Time: | 13:18 |
| Type: |  Piper PA-22-135 |
| Owner/operator: | Private |
| Registration: | N3762A |
| MSN: | 22-2004 |
| Total airframe hrs: | 2937 hours |
| Engine model: | Lycoming O-320-A3A |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Ontario, OR -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | ONO |
| Weiser, ID | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the climb-out from takeoff at about 200 feet above ground level, the left wing just outboard of the lift strut wing attach points folded upward. The aircraft then went into a vertical descent with the wing section trailing and still attached by what one witness thought were the control cables. The aircraft continued the vertical descent to ground collision. During the descent the forward left wing lift strut separated. Sections of the left side forward and aft lift strut attach fittings and fork assemblies were examined by an NTSB metallurgist. The metallurgist reported that all fracture features and deformation were typical of overstress fractures under bending load. Historical maintenance documentation revealed that the pilot, a non-mechanic, had been doing extensive structural maintenance on the aircraft since the late 1970's, and then having a certified mechanic sign-off his work.
Probable Cause: Overstress loading to the left wing lift strut resulting in the left wing folding upward during the initial climb.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X22337&key=1
History of this aircraft
Other occurrences involving this aircraft
| 23 August 1982 | N3762A | Private | 0 | Weiser, ID | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 12-Dec-2017 19:29 | ASN Update Bot | Updated [Operator, Departure airport, Source, Narrative] |
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