# Accident 20120405007179A: Robinson Helicopter R22 BETA, Isabel, SD, April 5, 2012

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 5, 2012, 06:45 local time
- Place: Isabel, SD
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 45.2672° N, 101.3864° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=45.2672&lon=-101.3864&mi=10
- Aircraft: N104MH, a cancelled registration (https://openairdocs.org/deregistered/N104MH-2016-01-12) (OpenAirDocs)
- Registry model: Robinson Helicopter R22 BETA (registry code 7640110, https://openairdocs.org/model/robinson-helicopter-r22-beta) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: ROBINSON HELICOPTER R22 BETA
- Reported engine: LYCOMING 0-320 SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 11,690 total, 208 in this make and model, 40 in the last 90 days
- NTSB investigation: [NTSB CEN12LA230](https://openairdocs.org/ntsb/CEN12LA230) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20120405007179A

## Narrative

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

ON APRIL 5, 2012 AT 6:45AM A ROBINSON R-22 N104MH ^PRIVACY DATA OMITTED^ OF AIR KRAFT SPRAYERS TIMBER LAKE, SD, WAS IN CRUISE FLIGHT DURING PREDATOR CONTROL OPERATIONS. VMC WEATHER CONDITION PREVAILED, AND NO FLIGHT PLAN WAS FILED.  THE PILOT STATED HE HEARD THE LOW ROTOR WARNING AND IMMEADIEATELY DROPPED THE COLLECTIVE AND ENTERED AN AUTO ROTATION. HE COULD NOT DETERMINE WHY HE LOST ROTOR RPM.  DURING THE AUTOROTATION HE HIT A SMALL TREE WHICH RESULTED IN THE HELICOPTER ROLLING ON ITS SIDE. THE HELICOPTER RECEIVED SUBSTANTIAL DAMAGED. THE PILOT WAS INJURED WITH BROKEN RIBS AND A CRACKED COLLARBONE.  THE PILOT DUANE J, KRAFT HOLDS A COMMERCIAL PILOT CERTIFICATE.  THE FLIGHT ORIGINATED AT TIMBER LAKE, SD ON APRIL 5, 2012 AT 6:30 AM MDT.

## 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 CEN12LA230](https://openairdocs.org/ntsb/CEN12LA230), Apr 5, 2012: Robinson Helicopter R22 Beta (N104MH), Isabel, SD, substantial damage. Probable cause: The partial loss of engine power due to carburetor ice.

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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