ASN Wikibase Occurrence # 278918
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| Date: | Saturday 27 July 2019 |
| Time: | 22:15 LT |
| Type: |  McDonnell Douglas MD 500E (369E) |
| Owner/operator: | Lane Co Sheriff's Office |
| Registration: | N438RC |
| MSN: | 0245E |
| Year of manufacture: | 1987 |
| Total airframe hrs: | 9497 hours |
| Engine model: | Rolls Royce 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Eugene Airport, OR -
 United States of America
|
| Phase: | Approach |
| Nature: | Unknown |
| Departure airport: | Eugene Airport, OR (EUG/KEUG) |
| Eugene Airport, OR (EUG/KEUG) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilots reported that they were approaching the airport ramp area for landing from the east with a wind of 10 knots from the north. About 25 to 30 feet above the ramp at an airspeed of about 25 knots, the left seat pilot reduced left pedal pressure to turn the helicopter toward the right into the wind, then subsequently increased left pedal pressure to stop the turn; however, the helicopter continued right and began to spin. The pilot lowered the collective, and the right seat pilot took the flight controls in an attempt to slow the spin. The helicopter impacted the ground hard, spreading the landing skids and resulting in the tail rotor contacting the ramp.
Postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. The helicopter's altitude above the ramp, its low forward speed, and the right turn were conducive to the onset of a loss of tail rotor effectiveness (LTE). Given the lack of mechanical anomalies, it is likely that the loss of control was due to LTE.
Probable Cause: The left seat pilot's failure to account for environmental conditions conducive to a loss of tail rotor effectiveness, which resulted in a loss of tail rotor effectiveness and subsequent loss of control.
Accident investigation:
 |
|
Sources:
NTSB WPR19LA205
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Jun-2022 12:19 | ASN Update Bot | Added |
| 30-May-2023 07:30 | Ron Averes | Updated |
Corrections or additions? ... Edit this accident description
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