ASN Wikibase Occurrence # 288483
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| Date: | Sunday 30 May 2010 |
| Time: | 11:45 LT |
| Type: |  Bell 206B |
| Owner/operator: | City Of Memphis |
| Registration: | N6401X |
| MSN: | 4522 |
| Year of manufacture: | 1999 |
| Total airframe hrs: | 2794 hours |
| Engine model: | Rolls Royce 250-C20J |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Memphis, Tennessee -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | Memphis, TN (27TN) |
| Memphis, TN (27TN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a public use training flight, the certificated flight instructor (CFI) simulated an engine failure as the helicopter was climbing through approximately 450 feet above ground level (agl). He then advised the pilot to terminate the maneuver with a power recovery. Approximately 100 feet agl the CFI told the pilot to increase the engine torque to full power. Shortly thereafter, the CFI heard the low rotor rpm warning and relayed to the pilot that he was assuming authority of the helicopter's controls. The CFI advanced the throttle to 100 percent power while both pilots remained on the controls. During the flare, the tail stinger struck the ground and the helicopter landed hard. The main rotor came into contact with the tail boom aft of the horizontal stabilizer and severed it. There was no evidence of any preimpact mechanical anomaly or malfunction with the helicopter.
Probable Cause: The pilot's failure to maintain adequate rotor rpm and the certificated flight instructor's delayed remedial action, which resulted in a hard landing.
Accident investigation:
 |
|
Sources:
NTSB ERA10TA292
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Oct-2022 23:09 | ASN Update Bot | Added |
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