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ASN Wikibase Occurrence # 175035
Last updated: 25 April 2019
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Type:Silhouette image of generic UH12 model; specific model in this crash may look slightly different
Hiller UH-12E
Owner/operator:Mid-cal Ag Aviation Inc
Registration: N130HA
C/n / msn: HA3030
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Location:6 miles east of Firebaugh, California -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:Firebaugh, CA
Destination airport:Firebaugh, CA
Investigating agency: NTSB
The commercial pilot reported that, during the agricultural application flight, the engine started to shake violently. The pilot executed a left turn and positioned the helicopter into the wind, but the helicopter started to descend, and the engine then lost power. The pilot conducted an autorotation, and the helicopter subsequently impacted the ground, which resulted in substantial damage to the tailboom. Postaccident examination of the engine revealed no evidence of preimpact mechanical malfunctions or failures that would have prevented normal operation.
Probable Cause: A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.


FAA register: 2. FAA:

Revision history:

02-Apr-2015 23:14 Geno Added
07-Aug-2016 18:16 Dr.John Smith Updated [Time, Location, Departure airport, Destination airport, Source, Narrative]
21-Dec-2016 19:30 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
01-Dec-2017 12:46 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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