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ASN Wikibase Occurrence # 42576
Last updated: 21 November 2019
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Type:Silhouette image of generic UH1 model; specific model in this crash may look slightly different
Bell UH-1H
Owner/operator:Agrotors Inc
Registration: N52AG
C/n / msn: 70-15746
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Frenchville, PA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:NONE
Destination airport:
Investigating agency: NTSB
The helicopter was on its fourth spray mission of the day, and the pilot's 51st spray mission for the season, when the accident occurred. The helicopter returned from the third mission, was refueled, reloaded, and departed. The helicopter then crashed a couple of minutes after takeoff in a wooded area. The weather was clear at the time of the accident. Main-rotor blade, and tail-rotor blade damage was consistent with low rotor rpm at impact. Examination of the transmission revealed no preimpact failures or malfunctions. Examination of the engine revealed that the compressor and turbine sections of the engine had been exposed to a large amount of aluminum from an unknown source prior to impacting the trees.
Probable Cause: Foreign object damage to the compressor and turbine sections of the engine, which resulted in a loss of power.



Revision history:

24-Oct-2008 10:30 ASN archive Added
30-Jun-2014 22:08 TB Updated [Cn, Source, Damage]
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
12-Dec-2017 18:44 ASN Update Bot Updated [Cn, Departure airport, Source, Narrative]

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