Robinson R22 BETA II N712U

Summary

On 18 June 2007 at about 19:20 local time, a Robinson R22 BETA II registered N712U, operated by Upper Limit Aviation, was involved in an accident near Park City, Utah, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

18 June 2007 at 19:20

Classification

Accident

Location

Park City, Utah, United States

Coordinates

40.6889, -111.4806

Aircraft

Robinson R22 BETA II

Registration

N712U

Category

Helicopter

Engines

1

Operator

Upper Limit Aviation

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Salt Lake City → Park City

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA07CA171

Nobody was injured.

The pilot's failure to maintain rotor RPM during hover taxi. A contributing factor was the high density altitude weather condition.

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

Read the full NTSB narrative

The flight instructor said that he was on a cross-country training flight with a student. He said he was going to demonstrate an emergency autorotation to an open plateau with an elevation of approximately 7,000 feet. The flight instructor said the autorotation went well. But when he completed a right pedal turn to taxi back and applied left pedal to stop the yaw, the low rotor RPM horn sounded. He lowered the collective and rolled on the throttle as the helicopter settled to the ground. The left skid impacted first, bending the left aft skid support tube, which transmitted to the fuselage structure bending and deforming it.

Quoted verbatim from the NTSB record.