ASN Wikibase Occurrence # 361121
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| Date: | Wednesday 27 October 1993 |
| Time: | 19:00 LT |
| Type: |  Cessna 177B |
| Owner/operator: | Sacramento Aero Service |
| Registration: | N18174 |
| MSN: | 02535 |
| Total airframe hrs: | 4843 hours |
| Engine model: | LYCOMING O-360-A1F6 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Pleasant Grove, CA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Sacramento, CA (Q96 |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE INSTRUCTOR REPORTED THAT HE PULLED THE MIXTURE TO IDLE CUT OFF TO SIMULATE AN ENGINE FAILURE FOR THE STUDENT. WHEN HE TRIED TO RESTART THE ENGINE, THE STARTER WOULD NOT TURN THE PROPELLER. A FORCED LANDING WAS MADE IN A RICE PADDY AND THE AIRPLANE NOSED OVER. THE STARTER WAS SUBSEQUENTLY TESTED AND FOUND TO DEVELOP 50% OF ITS DESIGNED CRANKING POWER. IT ALSO MADE GRINDING NOISES. INSPECTION OF THE STARTER REVEALED THAT IT HAD 24 VOLT BRUSHES INSTEAD OF THE REQUIRED 12 VOLT BRUSHES. FURTHER INSPECTION REVEALED THAT THE STARTER WAS NOT LUBRICATED, HAD A DRY BENDIX COUPLING, AND WAS CRACKED AT THE REAR BEARING HOUSING. COMPLETE REVIEW OF THE AIRPLANE'S MAINTENANCE RECORDS REVEALED NO HISTORICAL INFORMATION ON THE STARTER REGARDING DATE OF MANUFACTURE, OVERHAUL, OR INSTALLATION ON THE ENGINE.
Probable Cause: THE FAILURE OF THE STARTER TO TURN THE ENGINE OVER DUE TO INADEQUATE MAINTENANCE AND INSPECTION.
Accident investigation:
 |
|
Sources:
NTSB LAX94LA026
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 14:59 | ASN Update Bot | Added |
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