Robinson R22 BETA II N147SH

Summary

On 24 July 2007 at about 14:45 local time, a Robinson R22 BETA II registered N147SH was involved in an accident near Boise, Idaho, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

24 July 2007 at 14:45

Classification

Accident

Location

Boise, Idaho, United States

Nearest airport

Boise Air Terminal /Gowen Fld/ (BOI)

Coordinates

43.5736, -116.2269

Aircraft

Robinson R22 BETA II

Registration

N147SH

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Boise → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX07CA229

2 people had minor injuries.

The student pilot's failure to maintain rotor rpm resulting in an excessive descent rate and a hard landing. Factors in the accident were the student's failure to relinquish the controls, and the CFI's inadequate supervision.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The flight instructor reported that during their fifth practice autorotation, the student let the rotor rpm decay to the point that the certified flight instructor (CFI) attempted to intercede and perform a run on landing. The student and CFI both struggled with each other on the controls until the helicopter hit the ground hard. During the impact sequence, the helicopter spun around, and ultimately came to rest on the left side.

Quoted verbatim from the NTSB record.