ASN Wikibase Occurrence # 293911
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| Date: | Wednesday 13 April 2005 |
| Time: | 11:30 LT |
| Type: |  Robinson R44 II |
| Owner/operator: | Haines Capital Group, LLC |
| Registration: | N7535S |
| MSN: | 10496 |
| Year of manufacture: | 2004 |
| Total airframe hrs: | 74 hours |
| Engine model: | Lycoming IO-540-AE1A5 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Woodward, Oklahoma -
 United States of America
|
| Phase: | Unknown |
| Nature: | Executive |
| Departure airport: | Purcell, OK (3O3) |
| Woodward-West Woodward Airport, OK (WWR/KWWR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
After touching down on a portable helipad in a single-engine helicopter, the 10,500-hour pilot started "cool down procedures." After "sufficient time", the pilot disengaged the clutch, waited 30-45 seconds, and then turned the engine off. With the cyclic locked in the center position, the clutch light went out, and the rotor was winding down slowly. As the pilot reached back to apply the rotor brake, "a strong wind gust caused the rotor to lift and strike the tail boom. At the time of rotor blade impact, the engine was turned off and the clutch was totally disengaged." The reported wind at the time of the accident was from 350 degrees at 11 knots, gusting to 15 knots..
Probable Cause: the pilot's encounter with adverse weather conditions.
Accident investigation:
 |
|
Sources:
NTSB DFW05CA072
History of this aircraft
Other occurrences involving this aircraft
| 18 December 2018 | N7535S | Moog Inc. | 0 | Strykersville, NY | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Oct-2022 15:01 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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