# Accident 20051003031839A: Robsin R22BETA, Tucson, AZ, October 3, 2005

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 3, 2005, 07:40 local time
- Place: Tucson, AZ
- Airport: Tucson International
- Damage: Destroyed
- Phase of flight: Sfl Autorotation
- Operating rules: General operating rules (Part 91)
- Location: 32.4094° N, 111.2183° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=32.4094&lon=-111.2183&mi=10
- Aircraft: N926SH, a cancelled registration (https://openairdocs.org/deregistered/N926SH-2006-07-26) (OpenAirDocs)
- Registry model: Robinson Helicopter R22 BETA (registry code 7640110, https://openairdocs.org/model/robinson-helicopter-r22-beta) (OpenAirDocs)
- Registry engine: Lycoming O-360 series (registry code 41575, https://openairdocs.org/engine/lycoming-o-360-series) (OpenAirDocs)
- Reported make and model: ROBSIN R22BETA
- Fatal injuries: 0
- Pilot flight hours: 664 total, 656 in this make and model, 235 in the last 90 days
- NTSB investigation: [NTSB LAX06CA001](https://openairdocs.org/ntsb/LAX06CA001) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20051003031839A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON OCTOBER 3, 2005, AT APPROXIMATELY 0740 MST, N926SH, A ROBINSON R-22 HELICOPTER, CRASHED WHILE PERFORMING MANEUVERS DURING A CFR PART 61 INSTRUCTIONAL FLIGHT. THE PILOT ^PRIVACY DATA OMITTED WAS PERFORMING AS PILOT-IN-COMMAND AND PROVIDING FLIGHT INSTRUCTION TO ^PRIVACY DATA OMITT^. DURING THE PERFORMANCE OF A SIMULATED 180 DEGREE AUTOROTATION, AFTER ^PRIVACY DAT^ (STUDENT) ENTERED THE AUTOROTATION, HE ALLOWED THE AIRCRAFT'S AIRSPEED TO DROP TO 55 KNOTS AND THE ROTOR RPM TO DECAY TO APPROXIMATELY 95%. AS THE AIRCRAFT ROLLED OUT OF THE TURN, THE PILOT ^PRIVACY DAT^ RECOGNIZED THAT THE AIRCRAFT WAS NOT WITHIN STANDARDS, AND ASSUMED THE FLIGHT CONTROLS. THE PILOT ^PRIVACY DAT^ ATTEMPTED TO PERFORM A GO-AROUND BY RESTORING POWER, HOWEVER, OPERATING RPM WAS NOT REGAINED AND POWER WAS NOT SUFFICIENT TO PREVENT THE AIRCRAFT FROM STRIKING THE GROUND. THE PILOT ^PRIVACY DAT^ LEVELED THE AIRCRAFT AND THE AIRCRAFT TOUCHED DOWN ON A DIRT ROAD IN A LEVEL ATTITUDE WITH A HIGH RATE OF FORWARD MOVEMENT. THE AIRCRAFT CONTINUED TO SLIDE FORWARD FOR APPROXIMATELY 35 FEET BEFORE THE RIGHT SKID ENTERED SOFT SAND TO THE RIGHT OF THE ROAD. THE AIRCRAFT BEGAN TO ROLL END-OVER-END UNTIL IT CAME TO REST APPROXIMATELY 150 FEET AWAY. BOTH CREW MEMBERS EXITED THE AIRCRAFT UNASSISTED WITH ONLY MINOR BRUISES AND ROAD RASH. THE AIRCRAFT WAS TOTALLY DESTROYED. THIS AIRCRAFT WAS OPERATED BY SILVERSTATE HELICOPTERS AND PERFORMING FLIGHT INSTRUCTION UNDER CFR PART 61.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX06CA001](https://openairdocs.org/ntsb/LAX06CA001), Oct 3, 2005: Robinson Helicopter R22 Beta (N926SH), Tucson, AZ, substantial damage. Probable cause: the student pilot's failure to maintain adequate airspeed and rotor rpm during a practice autorotation, and the instructor's failure to adequately monitor the maneuver, which resulted in a hard…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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