ASN Wikibase Occurrence # 37305
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| Date: | Saturday 20 April 1985 |
| Time: | 00:00 |
| Type: |  Sikorsky S-58ET |
| Owner/operator: | Carson Helicopters |
| Registration: | N65526 |
| MSN: | 58-750 |
| Total airframe hrs: | 4548 hours |
| Engine model: | P&W PT6T-3 |
| Fatalities: | Fatalities: 3 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Gulf of Mexico -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Key West, FL (EYW) |
| Ft. Pierce, FL (FPR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE HELICOPTER DISAPPEARED WHILE ON AN OVERWATER FLT FROM KEY WEST, FL TO FT PEIRCE, FL. ONE OCCUPANT & THE WRECKAGE OF THE HELICOPTER WERE SUBSEQUENTLY RECOVERED FROM THE GULF OF MEXICO. THE PLT & THE OTHER OCCUPANT WERE NOT LOCATED & WERE PRESUMED DEAD. PRIOR TO DEPARTURE, 1 OF THE CREWMEMBERS WAS OVERHEARD TO SAY 'THAT DIDN'T SOUND GOOD'REFERRING TO SOME UNUSUAL SOUND AT THE TIME OF SHUT-DOWN. THE PLT TOLD A WITNESS THEY WERE HAVING MECHANICAL DIFFICULTY WHICH THEY WOULD CORRECT IN FT PIERCE. ANOTHER WITNESS HEARD THE PLT STATE TO 1 OF THE PAX THAT A CAP OR PART HAD FALLEN OFF & WAS MISSING. AN EXAM OF THE ROTATING & STATIONARY SWASHPLATES WHICH MADE UP THE STAR ASS'Y REVEALED THAT THEY HAD SEPARATED FROM EACH OTHER. A METALLURGICAL EXAM REVEALED THAT 8 OF THE 12 BOLTS WHICH SECURED THE ROTATING STAR INNER RACE TO THE ASS'Y HAD FAILED IN FATIGUE; THE OTHER 4 BOLTS WERE MISSING. THERE WAS EXTENSIVE DAMAGE TO THE BELLY, TAIL CONE & PYLON. CAUSE:
Ex German Air Force H-34G-I 80+09
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X36255_
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 20-Jul-2010 11:56 | TB | Updated [Other fatalities, Country, Phase, Narrative] |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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