ASN Wikibase Occurrence # 78946
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| Date: | Friday 29 October 2010 |
| Time: | 16:00 |
| Type: |  Robinson R22 Beta II |
| Owner/operator: | Guidance Helicopters |
| Registration: | N844SH |
| MSN: | 3824 |
| Year of manufacture: | 2004 |
| Total airframe hrs: | 2953 hours |
| Engine model: | Lycoming O-360 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Location: | Prescott Municipal Airport (Ernest A. Love Field) Prescott, Arizona -
 United States of America
|
| Phase: | Approach |
| Nature: | Training |
| Departure airport: | Prescott Municipal Airport (Ernest A. Love Field) Prescott, Arizona (K |
| Prescott Municipal Airport (Ernest A. Love Field) Prescott, Arizona (K | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A certificated flight instructor (CFI) and a student were practicing 180-degree auto rotations. The CFI noted that, during the initial entry into the auto rotation, the student pilot maintained proper rotor rpm and airspeed. About halfway through the 180-degree turn, the helicopter became nose-low and the airspeed increased. As the helicopter transitioned through about three-quarters of the turn, the CFI took authority of the helicopter's controls and attempted to correct the airspeed. The CFI stated that she was unable to correct and the helicopter touched down hard in an open dirt field. The helicopter subsequently rolled over and came to rest on its left side. Examination of the helicopter revealed that the tail boom was separated and the fuselage sustained structural damage. The CFI reported that no mechanical malfunctions existed during the practice auto rotation and accident sequence.
Probable Cause: The student pilot's failure to maintain the proper airspeed and the certificated flight instructor's inadequate supervision and delayed remedial action during a practice auto rotation, which resulted in a hard landing and rollover.
Accident investigation:
 |
|
Sources:
NTSB
2. FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=844SH
3. http://helihub.com/2010/10/29/29-oct-10-robinson-r22-prescott-us-arizona/
4. http://www.avclaims.com/N844SH.html
5. Photos of wreckage: http://www.avclaims.com/N844SH%20Photos.htm and
6. http://www.avclaims.com/N844SH%20PHOTOS%202.htm
7. http://www.azcentral.com/news/articles/2010/10/29/20101029prescott-flight-training-accident-abrk.html
History of this aircraft
Other occurrences involving this aircraft
| 21 December 2007 | N844SH | Silver State Helicopters LLC | 0 | Pueblo Memorial Airport, CO (PUB/KPUB) | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Oct-2010 08:07 | slowkid | Added |
| 02-Nov-2010 01:02 | bizjets101 | Updated [Registration, Cn, Operator, Source, Narrative] |
| 06-Oct-2016 20:39 | Dr.John Smith | Updated [Location, Phase, Departure airport, Destination airport, Source, Narrative] |
| 06-Oct-2016 20:43 | Dr.John Smith | Updated [Damage, Narrative] |
| 06-Oct-2016 20:45 | Dr.John Smith | Updated [Aircraft type] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 26-Nov-2017 18:34 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
| 19-Sep-2018 20:30 | Dr.John Smith | Updated [Time, Aircraft type, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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