ASN Wikibase Occurrence # 42545
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Saturday 18 June 1988 |
| Time: | 17:18 |
| Type: |  Bellanca 7GCBC Citabria |
| Owner/operator: | private |
| Registration: | N4129Y |
| MSN: | 951-76 |
| Engine model: | LYCOMING O-320-A2D |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Livermore Falls, ME -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Livemore Falls , ME (B10) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE CITABRIA 7GCBC WAS OBSERVED TO MAKE A LOOP. THE LEFT WING BENT UPWARD AT THE STRUT ATTACH POINT AS THE AIRCRAFT WAS AT THE BOTTOM OF THE LOOP AND RECOVERING TO LEVEL FLIGHT. THE AIRCRAFT WAS THEN OBSERVED TO DESCEND IN A RIGHT SPIRAL AND NOT RECOVER PRIOR TO CONTACT WITH THE GROUND. IMPROPER LEFT forward WING SPAR MANUFACTURING WAS FOUND. NO PROBLEMS WERE NOTED ON THE LEFT REAR WING SPAR. THE forward WING SPAR FAILED WITH TENSION ON THE TOP AND COMPRESSION ON THE BOTTOM. THE REAR WING SPAR HAD TENSION ON THE BOTTOM AND COMPRESSION ON THE TOP. THE LEFT WING OUTBOARD OF THE STRUT ATTACH POINT SEPARATED FROM THE AIRCRAFT PRIOR TO IMPACT. THE LEFT AILERON WAS BENT UPWARD 90 DEGREES AT THE MIDDLE HINGE POINT WHICH CORRESPONDS TO THE STRUT ATTACH POINT. INVESTIGATION REVEALED THAT THE SLOPE OF THE GRAIN ON THE forward WING SPAR EXCEEDED SPECIFICATIONS. ALSO TWO AREAS OF POOR BONDING WERE FOUND. THE AIRCRAFT LOG BOOKS WERE NOT FOUND. CAUSE:
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X26057
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] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation