ASN Wikibase Occurrence # 386112
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| Date: | Wednesday 21 March 2001 |
| Time: | 12:45 LT |
| Type: |  Robinson R22B |
| Owner/operator: | Rainbow Air Academy, Inc. |
| Registration: | N8492A |
| MSN: | 1824 |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 5729 hours |
| Engine model: | Lycoming O-320-B2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Long Beach, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Long Beach Airport, CA (LGB/KLGB) |
| Long Beach Airport, CA (LGB/KLGB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During an autorotation, the pilot made a hard landing and the tail boom was severed. The purpose of the flight was to conduct pattern work, and takeoffs and landings to prepare the private pilot for his commercial pilot practical test flight. During the flight the private pilot was on the flight controls, with the CFI monitoring the flight. No discrepancies were noted with the first two takeoffs and landings. During the first autorotation, the CFI noted that the student allowed the airspeed to fall below 60 knots, and that the rotor rpm was moving outside the top of the green arc. He instructed the student to maintain airspeed at 65 knots until close to the ground, and to raise the collective to maintain rotor rpm inside the green arc. On the second autorotation, the CFI noted that the student maintained rotor rpm inside the green arc, but let the airspeed fall below 58 knots. The low rotor rpm warning horn sounded and the caution light illuminated. Due to the close proximity of the helicopter to the ground, a flare for landing was initiated. The CFI came up on the controls and noted that the collective was higher than normal. Prior to touchdown the CFI applied forward pressure on the cyclic to maintain a level attitude after touchdown. The helicopter landed hard and slid across the ground before coming to rest in a grassy area next to the helipad. The CFI noted that after coming to a stop he attempted to move the anti-torque pedals, but did not receive a response.
Probable Cause: Failure of the CFI to adequately monitor the flight, which resulted in a low airspeed autorotation and hard landing.
Accident investigation:
 |
|
Sources:
NTSB LAX01LA125
History of this aircraft
Other occurrences involving this aircraft
| 22 April 2004 | N8492A | Pacific Coast Helicopter | 0 | Long Beach-Daugherty Field, Long Beach, California | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Apr-2024 11:19 | ASN Update Bot | Added |
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