# Accident 20090131001299A: Robsin R22BETAII, Piru, CA, January 31, 2009

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 31, 2009, 11:19 local time
- Place: Piru, CA
- Damage: Destroyed
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 34.3981° N, 118.7781° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=34.3981&lon=-118.7781&mi=10
- Aircraft: N4160A, a cancelled registration (https://openairdocs.org/deregistered/N4160A-2009-04-03) (OpenAirDocs)
- Registry model: Robinson Helicopter R22 BETA II (registry code 7640111, https://openairdocs.org/model/robinson-helicopter-r22-beta-ii) (OpenAirDocs)
- Registry engine: Lycoming O-360-J2A (registry code 42314, https://openairdocs.org/engine/lycoming-o-360-j2a) (OpenAirDocs)
- Reported make and model: ROBSIN R22BETAII
- People aboard: 1
- Fatal injuries: 1
- Other injuries: 0
- Pilot flight hours: 5,000 total, 48 in this make and model, 7 in the last 90 days
- NTSB investigation: [NTSB WPR09FA104](https://openairdocs.org/ntsb/WPR09FA104) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20090131001299A

## Narrative

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

HELICOPTER DESTROYED IN IMPACT WITH DRY RIVER BOTTOM.  RED PAINT TRANSFER ON ROTOR BLADES INDICATE ROTOR TIP CONTACT WITH AIRCRAFT TAIL BOOM AT THE “DANGER” DECAL.  TAIL BOOM SEVERED SECTION LOCATED IN EXCESS OF 400’ FEET FROM MAIN WRECKAGE SITE.

## 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 WPR09FA104](https://openairdocs.org/ntsb/WPR09FA104), Jan 31, 2009: Robinson Helicopter R22 Beta II (N4160A), Fillmore, CA, substantial damage, 1 fatal. Probable cause: An in-flight break-up while maneuvering as a result of the main rotor blades diverging from the normal plane of rotation and severing the tailboom. The underlying reason for the main rotor divergence…

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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