ASN Wikibase Occurrence # 373105
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| Date: | Sunday 3 May 1987 |
| Time: | 12:48 LT |
| Type: |  Bell 47G-3B1 |
| Owner/operator: | Whirleybird Helicopters |
| Registration: | N43CD |
| MSN: | 67 17016 |
| Total airframe hrs: | 3463 hours |
| Engine model: | LYCOMING VO435A1F |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Panama City Bch, FL -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT REPORTED THAT SHORTLY AFTER TAKEOFF THE ENG BEGAN TO LOSE POWER, THEN FAILED. HE THEN AUTOROTATED & SET THE HELICOPTER DOWN APRX 6 FEET OFFSHORE. EXAMINATION OF THE ENG LOGBOOKS BY FAA PERSONNEL REVEALED THAT AD 62-23-02 WHICH REQUIRES INSP OF THE OIL FILTER EVERY 25 HOURS HAD BEEN OVERDUE BY 20.9 HOURS. INSP OF THE TRANSMISSION REVEALED THAT A 5 1/2 INCH PIECE FROM THE CLUTCH DRUM RING SEPARATED WHICH DISENGAGED THE MAIN ROTOR FROM THE ENG RESULTING IN THE LOSS OF MAIN ROTOR RPM. EXAMINATION OF THE FAILED CLUTCH DRUM RING REVEALED EVIDENCE TO SUGGEST THAT IT FAILED DUE TO FATIGUE.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB MIA87LA155
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Mar-2024 09:38 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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