ASN Wikibase Occurrence # 358105
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Date: | Tuesday 24 October 1995 |
Time: | 11:25 LT |
Type: | Piper PA-28R-180 |
Owner/operator: | Airman Flight School, Inc. |
Registration: | N7471J |
MSN: | 28R-30824 |
Year of manufacture: | 1968 |
Engine model: | LYCOMING IO-360-B1A |
Fatalities: | Fatalities: 0 / Occupants: 3 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Dibble, OK -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Training |
Departure airport: | Norman, OK (KOUN) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:While practicing maneuvers at 3,500 feet, the pilots heard a loud noise and the windshield became covered with oil. During the ensuing forced landing, the airplane collided with a fence and ditch. Engine disassembly revealed the #4 connecting rod had fractured. The #2 and #4 top connecting rod nuts were loose. Metallurgical examination disclosed the #4 bottom connecting rod bolt had failed in overload and the #4 connecting rod had failed from high stress, low cycle fatigue.
Probable Cause: an overload failure of the #1 connecting rod bolt and resulting connecting rod fatigue failure. A factor was the lack of suitable terrain for the forced landing.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | FTW96LA025 |
Status: | Investigation completed |
Duration: | 11 months |
Download report: | Final report |
|
Sources:
NTSB FTW96LA025
Revision history:
Date/time | Contributor | Updates |
14-Mar-2024 09:57 |
ASN Update Bot |
Added |
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