ASN Wikibase Occurrence # 353068
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| Date: | Tuesday 6 July 1999 |
| Time: | 08:15 LT |
| Type: |  Piper PA-28-181 |
| Owner/operator: | Cal Coast Flyers, Inc. |
| Registration: | N3477Q |
| MSN: | 28-7790456 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 7781 hours |
| Engine model: | Lycoming O-360-A4M |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | San Luis Obispo, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | (KSBP) |
| Santa Monica, CA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor and student obtained an instrument departure clearance to climb to VFR on top for a cross-country flight. After reaching VFR on top, the engine rpm decreased to about 1,800 and then to 1,500. Following unsuccessful attempts to restore power, the instructor descended through the stratus cloud deck and became VFR about 700-800 feet msl. The power level was insufficient to reach the airport and he landed in an open field. Examination of the carburetor revealed a fibrous material inside the throat similar to the lining found inside the intake duct. The duct had evidence of a prior carburetor fire, which had caused a deterioration of the duct. The last maintenance inspection on this rental aircraft was 50 hours prior to the accident.
Probable Cause: A loss of engine power due to contamination of the induction system and the carburetor throat. Factors in the accident were a prior undetected carburetor fire, which caused a deterioration in the air duct material.
Accident investigation:
 |
|
Sources:
NTSB LAX99LA234
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Mar-2024 10:03 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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