ASN Wikibase Occurrence # 177493
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| Date: | Saturday 8 May 2004 |
| Time: | 12:45 |
| Type: |  Robinson R22 Beta |
| Owner/operator: | W W Helicopters, LLC. |
| Registration: | N215WW |
| MSN: | 0930 |
| Year of manufacture: | 1988 |
| Total airframe hrs: | 9276 hours |
| Engine model: | Lycoming O-320-B2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Genesee Depot, Wisconsin -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Dousman, WI |
| East Troy, WI (57C) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter landed hard following a loss of rotor rpm during the landing attempt. The pilot stated that during the landing attempt, approximately 20 feet above ground level, the low rotor RPM horn sounded along with the corresponding warning light. The pilot reported the helicopter "settled rapidly" as he lowered the collective and increased the throttle. The pilot stated that the helicopter was too low for a successful recovery and impacted left skid first. The pilot reported "It may have been possible that I delayed throttle governor by initially holding throttle/collective control too tightly." The pilot also stated that the accident could have been prevented by "closer observation of [the] main rotor RPM."
Probable Cause: The pilot's failure to maintain proper rotor RPM during the hover landing and his inadequate remedial action, which resulted in the hard landing.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040524X00638&key=1
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=215WW
History of this aircraft
Other occurrences involving this aircraft
| 22 November 1994 | N31MK | Private | 0 | Honolulu, HI | |
sub |
| 21 May 1999 | N215WW | W.w. Helicopters L.l.c. | 0 | East Troy, WI | |
sub |
| 5 January 2002 | N215WW | Ww Helicopters | 0 | East Troy, Wisconsin | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Jul-2015 13:11 | Noro | Added |
| 28-Sep-2016 19:32 | Dr.John Smith | Updated [Time, Operator, Other fatalities, Location, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Dec-2017 18:00 | ASN Update Bot | Updated [Operator, Departure airport, Destination airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
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