ASN Wikibase Occurrence # 372459
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| Date: | Friday 7 August 1987 |
| Time: | 14:00 LT |
| Type: | Bell 47J-2A |
| Owner/operator: | Dolphin Helicopter Inc. |
| Registration: | N8523F |
| MSN: | 3317 |
| Year of manufacture: | 1965 |
| Total airframe hrs: | 6965 hours |
| Engine model: | LYCOMING VO-540-BIB3 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Orlando, FL -
 United States of America
|
| Phase: | Approach |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING THE APCH TO LAND THE TAIL ROTOR DRIVE ASSY FAILED RESULTING IN A MOMENTARY LOSS OF CONTROL. THE PLT THEN AUTOROTATED & LANDED ON THE COMPANY HELIPAD, DURING WHICH THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE. EXAMINATION OF THE TAIL ROTOR DRIVE ASSY REVEALED THAT THE FWD SHORT SHAFT FAILED TORSIONALLY APRX 2 INCHES AFT OF THE TRANSMISSION DRIVE COUPLING DUE TO A LACK OF LUBRICATION IN IT. THE FAILURE OCCURRED AT APRX 40' AGL.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB MIA87LA224
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2024 17:13 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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