ASN Wikibase Occurrence # 243625
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Date: | Sunday 4 October 2020 |
Time: | 12:30 LT |
Type: | Piper PA-28-160 Cherokee |
Owner/operator: | Private |
Registration: | N6179U |
MSN: | 28-115 |
Year of manufacture: | 1964 |
Total airframe hrs: | 2792 hours |
Engine model: | Lycoming O-320-B2B |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Volney near Oswego County Airport (FZY/KFZY), Fulton, NY -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Fulton, NY |
Destination airport: | Fulton, NY |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:Shortly after takeoff, the engine crankshaft expansion plug dislodged, and oil started to cover the airplane's windscreen. The pilot attempted to return to, and land on the departure runway; however, the airplane subsequently touched down more than halfway down the runway. The pilot was unable to stop the airplane and it went off the runway and struck a chain link fence, which resulted in substantial damage to the fuselage, vertical stabilizer, and both wings.
The crankshaft expansion plug was installed during maintenance that was performed 3 days prior to the accident. The mechanic who performed the maintenance stated that he installed the crankshaft plug using a ball peen hammer; instead of following the procedures outlined by the engine manufacturer; which called for the use of a special tool to properly deform and seat the plug. The mechanic said that he has used a ball peen hammer in the past to install crankshaft plugs with success; however, in this instance, the plug did not seat properly, dislodged, and allowed oil to exit the end of the crankshaft in flight.
Probable Cause: The mechanic's improper maintenance, which resulted in the crankshaft expansion plug dislodging in flight and a subsequent forced landing.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ERA21LA006 |
Status: | Investigation completed |
Duration: | 8 months |
Download report: | Final report |
|
Sources:
NTSB ERA21LA006
https://flightaware.com/live/flight/N6179U/history/20201004/1625Z/KFZY/KFZY Location
Revision history:
Date/time | Contributor | Updates |
04-Oct-2020 22:32 |
Geno |
Added |
04-Oct-2020 22:44 |
Geno |
Updated [Location, Phase, Nature, Source, Damage, Narrative] |
04-Oct-2020 23:08 |
RobertMB |
Updated [Aircraft type, Registration, Cn, Operator, Departure airport, Source, Narrative] |
07-Jul-2022 18:25 |
ASN Update Bot |
Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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