ASN Wikibase Occurrence # 144171
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| Date: | Thursday 1 March 2012 |
| Time: | 12:20 |
| Type: |  Bell AH-1F Cobra |
| Owner/operator: | Private |
| Registration: | N197LE |
| MSN: | 83-24197 |
| Year of manufacture: | 1983 |
| Engine model: | Lycoming T53L-703 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Coolidge Municipal Airport, AZ (P08) -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | Coolidge Municipal Airport, AZ (P08) |
| Coolidge Municipal Airport, AZ (P08) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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.
Accident investigation:
 |
|
Sources:
NTSB
Location
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 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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