ASN Wikibase Occurrence # 39749
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| Date: | Wednesday 17 July 1991 |
| Time: | 15:00 LT |
| Type: |  Piper PA-32-300 |
| Owner/operator: | Darryl Rhodes & James Hanenber |
| Registration: | N5233S |
| MSN: | 32-40929 |
| Year of manufacture: | 1970 |
| Total airframe hrs: | 3138 hours |
| Engine model: | Lycoming IO-540-K1A5 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Corona, CA -
 United States of America
|
| Phase: | Approach |
| Nature: | Executive |
| Departure airport: | Palms Springs, CA |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHEN THE AIRCRAFT'S ENGINE FAILED DURING A VISUAL APPROACH FOR LANDING THE PILOT EXECUTED AN EMERGENCY LANDING. DURING THE EMERGENCY DESCENT HE NEGLECTED TO MAINTAIN AN AIRSPEED ABOVE THE AIRCRAFT'S STALL SPEED. THE AIRCRAFT STALLED AND IMPACTED THE GROUND IN ROUGH TERRAIN. AN EXAMINATION OF THE POWER PLANT AFTER THE ACCIDENT DISCLOSED THAT THE LEFT MAGNETO IMPULSE COUPLING FLYWEIGHTS STRUCK THE STOP PINS. THE FLYWEIGHT-STOP PIN IMPACT SEIZED THE MAGNETO AND SHEARED THE ACCESSORY DRIVE GEAR ALIGNMENT DOWEL. THIS FAILURE RESULTED IN THE UNCOUPLING THE ACCESSORY DRIVE TRAIN AND THE ENGINE FAILED.
Probable Cause: THE PILOT'S FAILURE TO MAINTAIN AN AIRSPEED ABOVE THE AIRCRAFT'S STALL SPEED AFTER THE ENGINE FAILED. FACTORS CONTRIBUTING TO THE ACCIDENT WERE: THE FAILURE OF THE ENGINE, MAGNETO AND ACCESSORY DRIVE GEAR, THE ROUGH TERRAIN CONDITIONS OVER WHICH THE ENGINE FAILED AND THE PILOT-IN-COMMANDS LACK OF TOTAL EXPERIENCE.
Accident investigation:
 |
|
Sources:
NTSB LAX91LA315
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Apr-2024 13:50 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Source, Narrative, Accident report] |
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