ASN Wikibase Occurrence # 354707
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| Date: | Tuesday 17 March 1998 |
| Time: | 14:45 LT |
| Type: |  Beechcraft A35 |
| Owner/operator: | Delta Management Corp |
| Registration: | N8597A |
| MSN: | D-2035 |
| Year of manufacture: | 1949 |
| Total airframe hrs: | 3868 hours |
| Engine model: | Continental E-185-8 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Auburn, CA -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | , CA (KAUN) |
| Byron, CA (C83) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane's engine lost power during the initial climb after departure, and the pilot performed a 180-degree turn back towards the airport, but landed short of the runway. The airplane was equipped with a hand operated emergency fuel pump, which was part of the fuel selector valve. The emergency procedures section of the POH states that the emergency hand pump should be used to restore fuel pressure in the event of an engine driven pump failure. The pilot stated that he never attempted to use the emergency hand fuel pump. An on-scene examination revealed fuel in both main tanks. Examination of the engine driven Lear-Romec fuel pump coupling found it had sheared and separated. Internal examination of the pump revealed bluing of the steel pump vane tips and galling of the pump liner. According to the manufacturer, the pump at some time had been operated without fuel, which cools the vanes, and had overheated. Metallurgical examination of the failed fuel pump coupling revealed that it separated due to ductile torsional overstress at a designed location. According to records available, the pump had accumulated about 619 hours since overhaul with an unknown total time.
Probable Cause: failure of the engine driven fuel pump drive coupling and the pilot's failure to perform the emergency procedure specified in the Pilot Operating Handbook.
Accident investigation:
 |
|
Sources:
NTSB LAX98FA119
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 17:26 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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