ASN Wikibase Occurrence # 381838
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| Date: | Wednesday 1 June 1983 |
| Time: | 12:58 LT |
| Type: | Boeing Vertol 234ER |
| Owner/operator: | Atlantic Richfield Co. |
| Registration: | N234BV |
| MSN: | MJ016 |
| Total airframe hrs: | 99 hours |
| Engine model: | Lycoming AL5512 |
| Fatalities: | Fatalities: 0 / Occupants: 19 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Mekoryuk, AK -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Bering Sea, AK (708) |
| Nome, AK (OME) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE CLIMBING IN IFR CONDITIONS AFTER TAKEOFF, THE #1 ENG LOST POWER. THE PLT DUMPED FUEL & LANDED ON AN OIL EXPLORATION PLATFORM. WHILE DUMPING FUEL, THE #1 JETTISON SYS OPERATED NORMALLY, BUT THE CIRUIT BREAKER POPPED ON THE #2 SYS. THE AIRCREW RESET THE CIRCUIT BREAKER & WERE ABLE TO OPEN THE VALVE, BUT THE CIRCUIT BREAKER POPPED AGAIN. THEY WERE ABLE TO CLOSE THE #2 JETTISON VALVE BY HOLDING THE CIRCUIT BREAKER IN. AN INVESTIGATION REVEALED THAT THE LOWER ACCESSORY LEVEL GEAR, PN 2-070-024-01, IN THE #1 ENG, HAD FAILED.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB ANC83IA089
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Apr-2024 07:42 | ASN Update Bot | Added |
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