ASN Wikibase Occurrence # 269213
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| Date: | Wednesday 15 November 2000 |
| Time: | 10:30 LT |
| Type: |  Eurocopter AS 350B-3 |
| Owner/operator: | |
| Registration: | N972AE |
| MSN: | 3234 |
| Year of manufacture: | 1999 |
| Total airframe hrs: | 278 hours |
| Engine model: | Turbomeca ARRIEL 2B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | MESA, Arizona -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | (FFZ) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A practice autorotation to touchdown resulted in a hard landing and bent the tail boom of the helicopter at the fuselage attachment juncture. After first demonstrating a practice autorotation to touchdown, the instructor turned control of the helicopter over to the student to perform the next autorotation to landing. The instructor reported that the student's entry was abrupt resulting in first, high rotor rpm, then low rpm; however, the rpm was proper prior to initiating the landing flare. The student's initial pitch application during the flare was a little too high but satisfactory. As the aircraft neared the landing, additional collective was applied, but it was insufficient to check the sink rate and the heels of the skids made ground contact, rocking the helicopter first forward onto the toe of the skid and then back down on the full skid. The pilot heard a metallic sound and, on external inspection, found the tail boom was bent down.
Probable Cause: The dual student's misjudged landing flare and level off, which resulted in a heel first touchdown and subsequent hard landing during a practice autorotation. Also causal was the instructor pilot's inadequate supervision of the student.
Accident investigation:
 |
|
Sources:
NTSB LAX01LA042
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Oct-2021 17:59 | ASN Update Bot | Added |
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