ASN Wikibase Occurrence # 364727
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| Date: | Saturday 10 August 1991 |
| Time: | 20:05 LT |
| Type: |  Bell 47G |
| Owner/operator: | Central Wisconsin Helicopters |
| Registration: | N61SD |
| MSN: | 3551 |
| Year of manufacture: | 1966 |
| Total airframe hrs: | 9065 hours |
| Engine model: | LYCOMING VO-435-AIF |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lake Ozark, MO -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Executive |
| Departure airport: | Bagnell Dam, MO |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT SAID THAT SHORTLY AFTER TAKEOFF HE HEARD A LOUD SNAP, FOLLOWED BY AN UNCOMMANDED RIGHT YAW. AN EMERGENCY AUTOROTATION WAS EXECUTED WHICH RESULTED IN A HARD WATER LANDING. POST ACCIDENT INVESTIGATION REVEALED THE CHROMEMOLY TUBING HAD FAILED IN FRONT OF THE TAIL ROTOR YOKE, IN FLIGHT.
Probable Cause: FAILURE OF THE ROTORCRAFT'S TAIL BOOM IN FLIGHT. FACTORS RELATED TO THE ACCIDENT WERE REDUCED AIRCRAFT CONTROL AVAILABLE TO THE PILOT.
Accident investigation:
 |
|
Sources:
NTSB CHI91LA257
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Mar-2024 18:11 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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