ASN Wikibase Occurrence # 357833
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| Date: | Friday 19 January 1996 |
| Time: | 18:20 LT |
| Type: |  Piper PA-28-236 |
| Owner/operator: | Orange Co. Flight Center |
| Registration: | N2476Y |
| MSN: | 28-8511016 |
| Total airframe hrs: | 3576 hours |
| Engine model: | Lycoming IO-540 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Seal Beach, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Santa Ana, CA (KSNA) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The engine suddenly quit during cruise flight and, unable to reach land, the pilot ditched in the ocean. After recovery, oil streaks were observed inside the engine cowling that proceeded back along the underside of the aircraft to the empennage. Also noted was a separation of the magneto housing from the accessory case and an oil residue. Examination of the housing revealed the presence of wear on the contact surfaces of the hold down lugs that suggests both lugs were loose prior to the accident. The looseness of the lugs would allow the magneto to vibrate, resulting in fatigue cracking through the mounting flange. The magneto was recently installed on the aircraft at the last inspection and the mechanic who performed the work did not have an inspection authorization.
Probable Cause: a total loss of engine power from an improperly installed magneto that separated from the engine housing due to fatigue from vibration.
Accident investigation:
 |
|
Sources:
NTSB LAX96FA097
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 07:06 | ASN Update Bot | Added |
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