ASN Wikibase Occurrence # 361689
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| Date: | Monday 12 July 1993 |
| Time: | 12:53 LT |
| Type: |  Piper PA-32-260 |
| Owner/operator: | Private |
| Registration: | N3774W |
| MSN: | 32-696 |
| Total airframe hrs: | 4741 hours |
| Engine model: | LYCOMING O-540 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Arlington, WY -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Laramie, WY (KLAR) |
| Jackson, WY (KJAC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT DEPARTED LARAMIE, WYOMING, AFTER TOPPING OFF THE AIRCRAFT FUEL TANKS. WHILE AT CRUISE ALTITUDE, THE ENGINE LOST POWER. THE PILOT MADE A FORCED LANDING AND REPORTED THAT HE 'WAS A LITTLE HIGH CAUSING INITIAL IMPACT AT NEAR STALL SPEED, REMOVING THE GEAR.' SUBSEQUENT EXAMINATION OF THE FUEL SYSTEM REVEALED CONTAMINATED WATER IN THE FUEL SELECTOR BOWL WITH THE DRAIN LEVER RUSTED IN THE 'CLOSED' POSITION. ADDITIONALLY, THE FUEL PUMP FILTER WAS COVERED WITH A RUST COLORED SUBSTANCE. AIRWORTHINESS DIRECTIVE 77-12-01 REQUIRES THAT THE FUEL SELECTOR VALVE BE CHECKED EVERY 50 HOURS SO AS TO 'PREVENT A FUEL SYSTEM MALFUNCTION AND A POSSIBLE POWER INTERRUPTION.' THE LAST RECORD OF SUCH AN INSPECTION ON THE AIRCRAFT WAS CONDUCTED 64 HOURS PREVIOUSLY (15 MONTHS PRIOR TO THE ACCIDENT). LIKEWISE, THE PIPER CHEROKEE SIX SERVICE MANUAL DESCRIBES PROCEDURES FOR REMOVING, DRAINING, AND CLEANING THE FUEL SELECTOR STRAINER BOWL AT LEAST EVERY 90 DAYS.
Probable Cause: FUEL CONTAMINATION, DIRECTIVES NOT FOLLOWED BY THE PILOT IN COMMAND, AND HIS PREMATURE FLARE.
Accident investigation:
 |
|
Sources:
NTSB SEA93LA152
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Mar-2024 06:43 | ASN Update Bot | Added |
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