ASN Wikibase Occurrence # 147261
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Date: | Tuesday 31 July 2012 |
Time: | 09:20 |
Type: | Fairchild Hiller FH-1100 |
Owner/operator: | Eclipse Helicopter Services |
Registration: | N5038F |
MSN: | 186 |
Year of manufacture: | 1969 |
Total airframe hrs: | 2250 hours |
Engine model: | Allison 250-C18 |
Fatalities: | Fatalities: 0 / Occupants: 4 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Near Cody, Wyoming -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Cody, WY |
Destination airport: | Cody, WY |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative: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 |
Report number: | WPR12LA341 |
Status: | Investigation completed |
Duration: | 1 year and 8 months |
Download report: | Final report |
|
Sources:
NTSB
Location
Revision history:
Date/time | Contributor | Updates |
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] |
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