ASN Wikibase Occurrence # 365587
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| Date: | Sunday 17 March 1991 |
| Time: | 17:30 LT |
| Type: |  Mooney M20D |
| Owner/operator: | Private |
| Registration: | N1921Y |
| MSN: | 216 |
| Year of manufacture: | 1964 |
| Engine model: | LYCOMING 0360 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Herlong, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Cottage Grove, OR |
| Bullhead City, AZ (PO6 | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AIRCRAFT HAD BEEN IN CRUISE FLIGHT AT AN ALTITUDE OF 7500 FEET MSL FOR TWO AND A HALF HOURS WHEN A BLADE SEPARATED FROM THE FIXED PITCH PROPELLER. THE PILOT SECURED THE ENGINE, STOPPED THE ROTATION OF THE PROPELLER AND LANDED ON A ROAD WITHOUT FURTHER INCIDENT. A POST ACCIDENT ANALYSIS OF THE PROPELLER FAILURE DISCLOSED A FATIGUE CRACK EMANATED FROM A CORROSION AREA ON THE CAMBER SIDE OF THE BLADE.
Probable Cause: THE INADEQUATE PREPARATION OF THE PROPELLER DURING OVERHAUL. THE INSTALLATION OF AN IMPROPER PITCHED PROPELLER AND THE FATIGUE FAILURE OF THE PROPELLER BLADE EMANATING FROM CORROSION WERE FACTORS IN THE ACCIDENT.
Accident investigation:
 |
|
Sources:
NTSB LAX91LA135
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 11:42 | ASN Update Bot | Added |
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