ASN Wikibase Occurrence # 291597
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| Date: | Monday 27 November 2006 |
| Time: | 11:30 LT |
| Type: |  Robinson R22B |
| Owner/operator: | Air Shasta Rotor |
| Registration: | N7198N |
| MSN: | 3168 |
| Year of manufacture: | 2001 |
| Engine model: | Lycoming O-360-J2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Redding, California -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Redding Airport, CA (RDD/KRDD) |
| Redding Airport, CA (RDD/KRDD) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter touched down hard at the culmination of a practice autorotation. During the instructional flight lesson, the certified flight instructor (CFI) monitored his student's flying. The student had about 15 hours of total helicopter flying experience. The CFI reported that the student initiated the landing flare about 40 feet above ground level (agl). According to the CFI, when the helicopter was about 10 feet agl he took over the controls, raised the collective, and rolled on the throttle to initiate a power recovery. The helicopter's low rotor warning horn sounded and the respective annunciator light illuminated. Thereafter, the helicopter contacted the ground, bounced, and came to rest after making two complete rotations about its vertical axis. The tailboom and vertical stabilizer were bent during the ground impact sequence. No mechanical malfunction or failure was reported to have occurred.
Probable Cause: The student's misjudged landing flare, the instructor's inadequate supervision of the flight, and the instructor's failure to maintain adequate rotor rpm.
Accident investigation:
 |
|
Sources:
NTSB LAX07CA050
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Oct-2022 16:40 | ASN Update Bot | Added |
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