ASN Wikibase Occurrence # 35597
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| Date: | Thursday 1 October 1998 |
| Time: | 11:05 LT |
| Type: |  Aero Commander 680FPL |
| Owner/operator: | Desert Aircraft Sales |
| Registration: | N5YZ |
| MSN: | 151322 |
| Engine model: | Lycoming IO-720-B1BD |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Palm Springs, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | , CA (KPSP) |
| (KPSP) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While departing on a local area aircraft checkout flight the aircraft stayed low and the pilot advised the tower that he had a fuel problem. The aircraft had been fueled with aviation grade 100LL twice the day before in preparation for a trip. The pilot attempted to return to the airport, but collided with power lines 1.5 miles north. Examination of the engines revealed severe detonation had occurred. A fuel sample was obtained from the aircraft and tested negative for jet fuel contamination. The aircraft had been modified by installation of higher horsepower engines and turbochargers with manual wastegates. During postaccident examination of the aircraft systems the manual wastegates were found partially closed; a position that can provide additional manifold pressure. The engines are restricted to a maximum of 29.5 inHg.
Probable Cause: The pilot's failure to properly use the manual turbocharger wastegates and to monitor the manifold pressure during takeoff.
Accident investigation:
 |
|
Sources:
NTSB LAX99FA001
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:22 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 05-Apr-2024 17:15 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Accident report] |
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