ASN Wikibase Occurrence # 357866
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| Date: | Friday 12 January 1996 |
| Time: | 10:30 LT |
| Type: |  Schweizer 269C |
| Owner/operator: | Smith Helicopters |
| Registration: | N3623T |
| MSN: | S1567 |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 2269 hours |
| Engine model: | Lycoming HIO-360-D1A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | San Ygnacio, TX -
 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 |
While herding cattle, the helicopter was moving laterally at about 70 feet out of ground effect, when the pilot heard a loud 'bang.' He said he applied anti-torque pedal to 'straighten' the helicopter with the flight path, but the helicopter did not respond to pedal inputs. The engine produced high RPM, but the tail rotor and main rotor RPM decreased. The pilot initiated an autorotation and landed on both skids. During touchdown with lateral movement, the helicopter rolled over and came to rest on its side. Inspection of the helicopter revealed that the swedged ball on the end of the clutch control cable had separated, which allowed the rotor drive system clutch assembly to disengage.
Probable Cause: Failure of the rotor drive system clutch assembly (separation of the swedge ball from the end of the clutch control cable), which resulted in disengagement of the rotor drive system, while the helicopter was in lateral movement at low altitude.
Accident investigation:
 |
|
Sources:
NTSB FTW96LA095
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 07:25 | ASN Update Bot | Added |
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