# Accident 20110203000739A: Robinson He R44, Ogden, UT, February 3, 2011

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: February 3, 2011, 18:00 local time
- Place: Ogden, UT
- Airport: Ogden
- Damage: Substantial damage
- Phase of flight: Other, Specify
- Operating rules: General operating rules (Part 91)
- Location: 41.3522° N, 112.1942° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=41.3522&lon=-112.1942&mi=10
- Aircraft: N441TB, registered now (https://openairdocs.org/aircraft/N441TB) (OpenAirDocs)
- Registry model: Robinson Helicopter R44 (registry code 7640120, https://openairdocs.org/model/robinson-helicopter-r44) (OpenAirDocs)
- Registry engine: Lycoming 0-540 series (registry code 41532, https://openairdocs.org/engine/lycoming-0-540-series) (OpenAirDocs)
- Reported make and model: ROBINSON HE R44
- Reported engine: LYCOMING 0-540 SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 864 total, 661 in this make and model, 165 in the last 90 days
- NTSB investigation: [NTSB WPR11CA121](https://openairdocs.org/ntsb/WPR11CA121) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20110203000739A

## Narrative

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

DURING A DEMONSTRATION PRACTICE ENGINE OUT AUTOROTATION, THE PILOT MISMANAGED THE CONTROLS RESULTING IN LOW ROTOR RPM AND SLOWER THAN NORMAL AIRSPEEDPILOT USED AN INCORRECT PROCEDURE TO ATTEMPT TO REGAIN ROTOR RPM WITHOUT SUCCESS, AT ABOUT 200 FEET ABOVE THE GROUND AN ATTEMPTED A POWER RECOVERY WAS TRIED WIT INSUFFICIENT POWER TO OVERCOME THE SLOW ROTOR SPEED.THE AIRCRAFT HIT HARD TAIL LOW RESULTING IN STRIKING THE TAIL STINGER ONTHE GROUND AND THE ROTOR BLADES CHOPPING OFF THE TAIL BOOM.THE AIRCRAFT STARTED A LEFT TURN ON THE SKIDS, RESULTING IN THE RIGHT SKID COLLAPSING, THE FUSELAGE NOSE SCRAPING THE GROUND.  THE AIRCRAFT THEN TUNED RIGHT ABOUT 90 DEGREES ONTO ITS RIGHT SIDE WITH THE MAIN ROTOR BLADES STRIKING THE GOUND ABOUT ONE TIME EACH BEFORE COMING TO REST.

## 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 WPR11CA121](https://openairdocs.org/ntsb/WPR11CA121), Feb 4, 2011: Robinson R44 (N441TB), Ogden, UT, substantial damage. Probable cause: The certified flight instructor’s failure to maintain adequate main rotor blade rpm during a practice autorotation, resulting in a hard landing and rollover.

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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