ASN Wikibase Occurrence # 368440
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| Date: | Sunday 9 July 1989 |
| Time: | 11:43 LT |
| Type: | Cushing C2 |
| Owner/operator: | Private |
| Registration: | N129C |
| MSN: | 12 |
| Total airframe hrs: | 338 hours |
| Engine model: | VOLKSWAGEN UNKNOWN |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | John Day, OR -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
PRIOR TO THE PLEASURE FLIGHT, THE PILOT REPORTED THAT WHEN ASSEMBLING THE LEFT WING, THE MOUNT BOLTS WOULD NOT ALIGN. THE PILOT DRILLED NEW HOLES ELONGATING THE ORIGINAL HOLES. THE WING WAS ASSEMBLED AND THE PILOT ATTEMPTED A TAKEOFF. JUST AFTER LIFT OFF, THE AIRPLANE BEGAN TO PORPOISE. SHORTLY THERE AFTER, THE LEFT WING FOLDED BACK AND UP. THE AIRPLANE ROLLED INVERTED TO THE LEFT AND SKIDDED DOWN THE RUNWAY. POST CRASH INSPECTION OF THE AIRPLANE REVEALED THAT THE WING BROKE AWAY AT THE SPAR. DRY ROT WAS NOTED THROUGHOUT THE ENTIRE STRUCTURE.
Probable Cause: THE PILOT IMPROPERLY CHANGED THE DESIGN OF THE AIRPLANE BY ELONGATING HOLES AT THE WING ATTACHMENT. THE CHANGE WAS NOT INSPECTED BY A QUALIFIED INDIVIDUAL. AS A RESULT OF THE CHANGE, THE WING SEPARATED AT THE SPAR.
Accident investigation:
 |
|
Sources:
NTSB SEA89LA130
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 18:25 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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