Robinson R22B N2352G

Summary

On 24 May 2001 at about 02:00 local time, a Robinson R22B registered N2352G was involved in an accident near Murietta, California, United States. One person was 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

24 May 2001 at 02:00

Classification

Accident

Location

Murietta, California, United States

Nearest airport

French Valley, California (F70)

Coordinates

33.5693, -117.1395

Aircraft

Robinson R22B

Registration

N2352G

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Murietta → Murietta

Aircraft damage

Substantial

Weather

VMC

Light

Dusk

NTSB number

LAX01LA190

Nobody was injured.

The solo student's improper use of the flight controls that resulted in a dynamic rollover during the attempted takeoff.

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

Read the full NTSB narrative

The instructor had just completed 30 minutes of hover practice with the student. The student landed the helicopter and the instructor deplaned to allow the student to execute his first solo flight. As the instructor watched, the student began to liftoff and immediately rolled to the right and crashed. According to the instructor, the helicopter never left the ground. The student had logged approximately 29 hours of dual instruction in the R22 prior to the accident. The instructor stated that he had done many pickups and set downs with the student just prior to the accident. He emphasized the differences in flight characteristics that the student would experience when the instructor was not in the helicopter. He explained that he had covered dynamic rollover situations in ground school sessions, including a Robinson factory training videotape on the subject. The instructor normally occupied the left seat of the helicopter during dual lessons. At the time of the accident, the student was occupying the right seat, and the left seat was empty. The solo flight was conducted on an asphalt helicopter landing pad. Inspectors from the Federal Aviation Administration found no evidence of preaccident mechanical failure. The helipad was inspected and found to be clean, smooth, and free of obstructions. The instructor weighed 185 pounds, and the helicopter had consumed 30 pounds of fuel prior to the attempted solo flight. This made the helicopter 215 pounds lighter than the student was accustomed to. If the student did not exercise extreme caution to liftoff very slowly and deliberately, with the cyclic centered, a dynamic rollover would be very likely to occur. With an excessive input of collective, the helicopter at a light takeoff weight and the cyclic even slightly off center, the roll would be extremely rapid and nearly impossible to arrest.

Quoted verbatim from the NTSB record.