Accident · 2012-09-25

NTSB case ANC12CA111 · ROBINSON HELICOPTER R22 BETA II · Part 91

What the record says

Event date: 2012-09-25
Event type: Accident
Highest injury level: No injuries
Aircraft: ROBINSON HELICOPTER R22 BETA II (N4171J)
Operating rule: Part 91
Operator: ALPINE AIR ALASKA LLC Operator named in NTSB report
Operated by (per NTSB report): ALPINE AIR ALASKA INC

Probable cause

The flight instructor's inadequate supervision of the student pilot during a hovering autorotation, which resulted in a dynamic rollover.

Source: NTSB case ANC12CA111

Flight crew

Certification and experience as recorded in the NTSB accident database for this event. The NTSB records these facts about the crew's flying history; GroundCheck shows them as filed, without names or identities.

Role	Certificate	Instrument rating	Age	Medical	Flight hours
Flight instructor	Flight instructor	Helicopter	31	Class 2 (2012-02-23)	338 total · 255 in this make/model · 271 as PIC · 127 last 90 days

Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.

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