ASN Wikibase Occurrence # 284108
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| Date: | Wednesday 24 October 2007 |
| Time: | 13:00 LT |
| Type: |  Robinson R22 Beta |
| Owner/operator: | Los Angeles Helicopter |
| Registration: | N7188S |
| MSN: | 3030 |
| Year of manufacture: | 2000 |
| Engine model: | Lycoming O-360 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Long Beach, California -
 United States of America
|
| Phase: | Unknown |
| 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 |
The certified flight instructor (CFI) and student were practicing helicopter low rotor rpm recoveries. He instructed his student to execute the recovery when the low rpm warning system activated, both light and horn. Prior to the maneuver, the CFI demonstrated and verified that the student pilot understood the recovery procedure, which was to lower the collective and increase the throttle. The helicopter was in a 10-foot hover when the CFI decreased the rotor rpm by reducing the throttle until the low rpm warning system activated. The student pilot responded by lowering the collective and reducing the throttle instead of increasing the throttle. The helicopter yawed to the left and descended towards the ground. The tail rotor collided with the ground, shearing off the tail rotor blades and the helicopter rotated on the ground. The CFI slowed the rotation and was able to shut down the helicopter.
Probable Cause: The student pilot's improper execution of low rotor rpm procedures. Contributing to the accident was the flight instructor's inadequate supervision, failure to guard the throttle, and failure to take immediate remedial action.
Accident investigation:
 |
|
Sources:
NTSB LAX08CA016
History of this aircraft
Other occurrences involving this aircraft
| 5 March 2004 | N7188S | Private | 0 | Long Beach-Daugherty Field, Long Beach, California | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2022 07:53 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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