ASN Wikibase Occurrence # 290212
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Tuesday 29 January 2013 |
| Time: | 09:30 LT |
| Type: |  Hughes 369HS |
| Owner/operator: | Daniel Mills |
| Registration: | N193M |
| MSN: | 1190219S |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 6309 hours |
| Engine model: | Allison 250-C18 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | London, Ohio -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Canton, OH |
| Dayton-James Cox Dayton International Airport, OH (DAY/KDAY) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot said the helicopter's turbine engine lost power after flying through an area of moderate to heavy snow. The pilot entered an autorotation and applied excessive aft cyclic during the touchdown in a field, which caused the main rotor blades to flex down and sever the tailboom. Weather reported in the area included snow and freezing fog, with a temperature of 16 degrees F. The helicopter was equipped with an automatic engine re-ignition and engine failure warning system, which was required per the rotorcraft flight manual (RFM) for operation in falling or blowing snow. The pilot said this system was armed at the time of the engine failure and the engine-out warning light illuminated and an audible tone sounded before the power loss. The RFM also stated that flight into known icing conditions was prohibited and fuel had to meet anti-icing capability of JP-4 when operating at 40 degrees or less. A review of fueling records revealed that no anti-icing additive was added to the fuel. The pilot was aware of the icing conditions, but he continued the flight. Examination of the engine found no mechanical anomalies that would have precluded normal operation.
Probable Cause: The pilot's failure to comply with established cold weather operating procedures, which resulted in a total loss of engine power. Contributing to the accident was the pilot's excessive aft cyclic input during the landing flare, which resulted in main rotor blade contact with the tail boom.
Accident investigation:
 |
|
Sources:
NTSB CEN13CA145
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Oct-2022 12:14 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation