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ASN Wikibase Occurrence # 144171
Last updated: 5 August 2020
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Date:01-MAR-2012
Time:12:20
Type:Silhouette image of generic HUCO model; specific model in this crash may look slightly different
Bell AH-1F Cobra
Owner/operator:Private
Registration: N197LE
C/n / msn: 83-24197
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:Near Coolidge Municipal Airport - P08, Coolidge, AZ -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Executive
Departure airport:Coolidge, AZ (P08)
Destination airport:Coolidge, AZ (P08)
Investigating agency: NTSB
Narrative:
The pilot reported that he was conducting flybys to film a segment for a documentary. During his last run, he initiated a 150- to 180-degree climbing right turn to about 200 ft above the ground. After the turn, he attempted to neutralize the flight controls in preparation for a normal approach to land, but he was unable to move them. The helicopter remained in the same turn rate with the same collective pitch and cyclic input until ground impact. A postaccident examination of the helicopter revealed no evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. The reason for the flight control malfunction could not be determined.
 

Probable Cause: A flight control malfunction while maneuvering for reasons that could not be determined because postaccident examination revealed no evidence of a mechanical malfunction or failure that would have precluded normal operation. 
 
 
 

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20120217X34147&key=1


Revision history:

Date/timeContributorUpdates
02-Mar-2012 10:24 Geno Added
03-Mar-2012 07:27 RobertMB Updated [Cn, Operator, Location, Source, Narrative]
03-Mar-2012 14:42 krasatpi Updated [Source]
27-Mar-2012 21:22 Geno Updated [Source]
17-Apr-2012 05:29 harro Updated [Embed code]
13-Feb-2013 01:14 Hans Gruber Updated [Embed code, Narrative]
24-Jul-2015 14:27 Aerossurance Updated [Nature, Departure airport, Destination airport, Narrative]
21-Dec-2016 19:26 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 20:26 ASN Update Bot Updated [Cn, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Embed code, Narrative]

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