ASN Wikibase Occurrence # 133681
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| Date: | Sunday 16 August 1998 |
| Time: | 20:42 LT |
| Type: |  American Aviation AA-1A Trainer |
| Owner/operator: | Shaw Aviation, Inc. |
| Registration: | N9364L |
| MSN: | A414-0064 |
| Total airframe hrs: | 6937 hours |
| Engine model: | Lycoming O-235 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Erial, NJ -
 United States of America
|
| Phase: | En route |
| Nature: | Survey |
| Departure airport: | Ocean City, NJ (26N) |
| Philadelphia, PA (PNE | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While at 1,500 feet, the engine developed a slight vibration. The pilot checked the fuel pump on, the mixture rich, and changed fuel tanks. The vibrations increased, and were accompanied by smoke. The pilot heard an explosive 'bang' and the cowling came up into his line of vision. Oil covered the pilot's side of the windscreen, and the engine was unable to maintain altitude. The airplane struck a telephone pole during the forced landing. Post flight inspection revealed a catastrophic failure of the engine's number two cylinder. Factory examination determined that the failure emanated from a rust pit on the outside of the cylinder wall. The cylinder, which was manufactured in July 1996, had 1,780 hours of service.
Probable Cause: Catastrophic failure of the number 2 engine cylinder, emanating from a corrosion pit on the outside cylinder wall. A factor was the pilot's diminished forward visibility due to oil on the windshield.
Accident investigation:
 |
|
Sources:
NTSB NYC98LA168
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 06-Apr-2024 14:49 | ASN Update Bot | Updated [Time, Cn, Other fatalities, Departure airport, Destination airport, Source, Narrative, Accident report] |
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