ASN Wikibase Occurrence # 202211
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| Date: | Monday 5 April 1999 |
| Time: | 10:53 LT |
| Type: |  Piper PA-32R-300 Lance |
| Owner/operator: | Bellair, Inc. |
| Registration: | N1942H |
| MSN: | 32R-77880206 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 7201 hours |
| Engine model: | Lycoming IO-540-K1G5D |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Fairbanks, AK -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Unknown |
| Departure airport: | , AK (KFAI) |
| Fort Yukon, AK (FYU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During initial climb, about 1,500 feet above ground level, as the pilot made his first power reduction, the engine quit. The pilot stated 'it quit so fast I knew I had a problem.' The pilot waited until he cleared trees to extend the landing gear, and landed the airplane on a road. The landing gear did not lock into the down position and collapsed. The right wing struck a snow berm. Inspection revealed that one of the bolts joining the number six connecting rod to the crankshaft had separated. The nut was found in the bottom of the crankcase. Inspection of the bolt and nut at the NTSB metallurgical laboratory did not reveal any preaccident damage to the threads on either the bolt or the nut. The torque on the other 11 connecting rod attachment nuts was checked to be 480 inch-pounds. The engine had been overhauled 241 hours prior to the accident.
Probable Cause: The loss of engine power due to the failure of maintenance personnel to properly torque a connecting rod bolt during an engine overhaul, and the subsequent disconnection of the connecting rod bolt and connecting rod.
Accident investigation:
 |
|
Sources:
NTSB ANC99LA043
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Nov-2017 12:44 | ASN Update Bot | Added |
| 08-Apr-2024 07:41 | ASN Update Bot | Updated [Time, Cn, Other fatalities, Phase, Departure airport, Source, Narrative, Category, Accident report] |
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