Loss of control Accident Aero Commander S-2R N8870Q, 19 Aug 2016
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ASN Wikibase Occurrence # 189391
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Type:Silhouette image of generic SS2P model; specific model in this crash may look slightly different    
Aero Commander S-2R
Owner/operator:Rocky Mountain Ag Inc
Registration: N8870Q
MSN: 1470R
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Alamosa County E of Center, CO -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:Monte Vista, CO (MVI)
Destination airport:Monte Vista, CO (MVI)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The commercial pilot was conducting his sixth low-level agricultural application flight of the day. One witness reported that the airplane made a turn, appeared to stall at the top of the turn, and spiraled to the ground. Witnesses who responded immediately to the scene found the pilot unresponsive and assisted in removing him from the wreckage. Examination of the accident site indicated that the airplane impacted a wheat field in a vertical, nose-down attitude. Postaccident examination of the airplane did not reveal any evidence of preimpact failures or malfunctions that would have precluded normal operation. The pilot's cell phone records indicated that the pilot was texting at times that coincided with some of the application flights, including the accident flight. However, there was insufficient information to determine whether airborne PED use played a role in the accident flight.

The toxicology testing on the pilot was positive for diphenhydramine, which is potentially impairing; however, it is unlikely that the pilot was significantly impaired by the small amount of drug found in his system. Exposure to the chemicals that the pilot was applying on the day of the accident can lead to various topical, airway, or neurological symptoms; however, there were no reports that the pilot complained of anything or displayed any unusual behavior on the day of the accident.

Probable Cause: The pilot's failure to maintain airplane control during a low-level maneuver, which resulted in an aerodynamic stall.



FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N8870Q

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 years
Download report: Final report


Photo: NTSB

Revision history:

20-Aug-2016 02:07 Geno Added
21-Aug-2016 06:33 Anon. Updated [Aircraft type, Source]
22-Aug-2016 18:09 Geno Updated [Aircraft type, Registration, Cn, Operator, Source]
22-Aug-2018 10:37 ASN Update Bot Updated [Operator, Departure airport, Destination airport, Source, Narrative]
22-Aug-2018 10:43 harro Updated [Source, Narrative, Photo, ]

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