ASN logo
ASN Wikibase Occurrence # 147261
Last updated: 17 November 2021
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.

Type:Silhouette image of generic FH11 model; specific model in this crash may look slightly different
Fairchild Hiller FH-1100
Owner/operator:Eclipse Helicopter Services
Registration: N5038F
MSN: 186
Fatalities:Fatalities: 0 / Occupants: 4
Aircraft damage: Substantial
Location:Near Cody, Wyoming -   United States of America
Phase: Landing
Departure airport:Cody, WY
Destination airport:Cody, WY
Investigating agency: NTSB
The pilot reported that while in cruise flight, the rear of the helicopter suddenly began to vibrate. He performed an autorotation to a field, and the helicopter landed hard. The tailboom and main transmission mounts were substantially damaged. The pilot reported that a tail rotor driveshaft coupling had split in half, which resulted in a loss of tail rotor drive. Postaccident examination of the tail rotor driveshaft coupling revealed that the coupling failure was initiated by fatigue cracking. A complete history of the part was not available; therefore, the total time in service of the part could not be determined.

Probable Cause: The failure of a tail rotor driveshaft coupling due to fatigue.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 8 months
Download report: Final report

Revision history:

31-Jul-2012 11:26 gerard57 Added
31-Jul-2012 13:41 Anon. Updated [Operator, Total occupants, Source, Damage]
01-Aug-2012 01:33 gerard57 Updated [Aircraft type, Registration, Narrative]
01-Aug-2012 01:50 gerard57 Updated [Aircraft type]
01-Aug-2012 08:17 Geno Updated [Time, Cn, Operator, Phase, Source, Narrative]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 20:57 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

Corrections or additions? ... Edit this accident description