ASN Wikibase Occurrence # 382010
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| Date: | Friday 13 May 1983 |
| Time: | 16:55 LT |
| Type: |  Grumman American AA5B |
| Owner/operator: | Hortmont Aviation Services |
| Registration: | N28426 |
| MSN: | AA5B-0606 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 1556 hours |
| Engine model: | Avco Lycoming O-360-A4K |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Bedminster, NJ -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | White Plains, NY (HPN |
| Doylestown, PA (N88 | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE ACFT CRASHED INTO TREES DURING A FORCED LANDING AFTER A LOSS OF POWER WHILE ENROUTE FROM WHITE PLAINS. THE ENGINE STARTED TO SHAKE AND THE RPMS DECREASED. THE PLT INITIATED EMERGENCY PROCEDURES BUT THE ENGINE CONTINUED TO RUN ROUGHLY.A DECISION WAS MADE TO LAND AT SOMERSET ARPT. THE LANDING APPROACH WAS HIGH AND THE PLT ELECTED TO GO AROUND. THE ENGINEPOWER WAS NOT ENOUGH AND A FULL STALL FLAPS UP LANDING WAS MADE INTO THE TREE TOPS. THE ACFT SLID DOWN THE TREES AND STOPPED IN A PAST VERTICAL NOSE DOWN POSITION. DURING A POST ACCIDENT ENGINE EXAMINATION THE #1 CYLINDER HAD NO COMPRESSION. THE EXHAUST VALVE WAS BROKEN AND THE VALVE HEAD WAS NOT FOUND. THE CYLINDER EXHAUST VALVE GUIDE MEASURED .515. THE SPECIFICATION WHEN NEW IS .4985. THE SERVICE LIMIT IS .4995.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB NYC83FA110
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Apr-2024 09:25 | ASN Update Bot | Added |
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