ASN Wikibase Occurrence # 383917
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Date: | Saturday 10 July 1982 |
Time: | 18:20 LT |
Type: | Bell 212 |
Owner/operator: | Kenai Air Alaska Inc. |
Registration: | N59572 |
MSN: | 30621 |
Year of manufacture: | 1974 |
Total airframe hrs: | 3467 hours |
Engine model: | P & W PT-6-T-3 |
Fatalities: | Fatalities: 0 / Occupants: 6 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | 38 Se Barrow, AK -
United States of America
|
Phase: | En route |
Nature: | Unknown |
Departure airport: | REMOTE LOCATION |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:WHILE EXECUTING A PRECAUTIONARY LANDING AFTER HEARING A SCREECHING SOUND THE PLT LOST DIRECTIONAL CONTROL & THE HELICOPTER LANDED WHILE SPINNING. EXAMINATION REVEALED THAT THE PRIMARY TAIL ROTOR DRIVESHAFT QUILL COUPLING HAD FAILED. THE 204-040-604-5 FEMALE COUPLING HAD EXPERIENCED HIGH TEMPERATURES DURING OPERATION. CADIUM PLATING HAD BEGUN TO MELT ON EXTERIOR SURFACES. VISUAL OVERHEAT INDICATOR STRIPES REQUIRED BY THE COMPONENT REPAIR & OVERHAUL MANUAL WERE NOT PRESENT ON THE FEMALE COUPLING. THE 204-040-603-9 MALE COUPLING HAD EXTENSIVE HEAT & MECHANICAL DAMAGE.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ANC82FA056 |
Status: | Investigation completed |
Duration: | 1 year |
Download report: | Final report |
|
Sources:
NTSB ANC82FA056
Location
Revision history:
Date/time | Contributor | Updates |
03-Apr-2024 05:48 |
ASN Update Bot |
Added |
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