ASN Wikibase Occurrence # 135070
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| Date: | Thursday 28 September 2006 |
| Time: | 18:20 |
| Type: | Daub Pawnee Chief |
| Owner/operator: | Clear Horizons Inc. |
| Registration: | N565CH |
| MSN: | PC00002 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Mccook, NE -
 United States of America
|
| Phase: | Unknown |
| Nature: | Test |
| Departure airport: | McCook, NE (MCK) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The amateur built helicopter impacted the ground during a test flight following the failure of a welded joint at a cyclic control cable bracket resulting in a loss of control authority. A post impact fire ensued destroying the helicopter. The pilot reported he was in a low hover when the tail came up and the helicopter tilted. One of the skids subsequently caught the ground causing the helicopter to roll over. Examination of the helicopter revealed that a welded joint failed at a cyclic control cable bracket on the main rotor mast. Failure of the welded bracket caused the loss of input control authority from the cyclic control to the main rotor.
Probable Cause: The failure of a welded joint at a cyclic control cable bracket located on the main rotor mast which made control of the helicopter impossible for the pilot.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20070222X00213&key=1
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 05-Dec-2017 09:24 | ASN Update Bot | Updated [Nature, Departure airport, Source, Narrative, Plane category] |
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