ASN Wikibase Occurrence # 383280
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| Date: | Tuesday 21 September 1982 |
| Time: | 14:28 LT |
| Type: |  Cessna C-207 |
| Owner/operator: | Yute Air Alaska Inc. |
| Registration: | N7394U |
| MSN: | 20700437 |
| Year of manufacture: | 1978 |
| Total airframe hrs: | 2738 hours |
| Engine model: | Continental IO-520-F |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Near Dillingham, AK -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Manakotak, AK |
| Dillingham, AK (DLG) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
SHORTLY AFTER TAKEOFF, THE AIRCRAFT EXPERIENCED A POWER FAILURE. THE PILOT STATED THAT WHEN THE POWER LOSS OCCURRED HE SWITCHED THE FUEL SELECTOR FROM THE LEFT TANK TO THE RIGHT TANK AND SELECTED "MAX HI-ON" ON THE FUEL BOOST PUMP. HIS ATTEMPTS TO RESTART THE ENGINE WERE UNSUCCESSFUL. THE PILOT FURTHER STATED THAT AFTER THE MISHAP HE CHECKED BOTH FUEL TANKS; THE LEFT TANK WAS EMPTY AND THE RIGHT TANK WAS PARTIALLY FULL. HE ALSO STATED THAT ON A PREVIOUS FLIGHT THAT DAY, FUEL WAS SIPHONING FROM THE LEFT TANK, BUT THE CONDITION ALLEVIATED ITSELF WHEN HE RESECURED THE FUEL CAP. FUEL SIPHONING USUALLY OCCURRS WHEN THE BOTTOM OF THE FUEL BLADDER IS NOT SECURED AND THE BLADDER COLLAPSES UPWARD. THIS CONDITION CAN CAUSE ERRONEOUS FUEL QUANTITY INDICATIONS. A REVIEW OF THE AIRCRAFT FLIGHT MANUAL INDICATED THAT ACTUATION OF THE "MAX HI-ON" HALF OF THE FUEL BOOST PUMP SWITCH DURING ENGINE RESTART CAN CAUSE FLOODING OF THE INTAKE MANIFOLDS.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB ANC82IA095
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Apr-2024 22:55 | ASN Update Bot | Added |
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