Friday, September 15, 2017

Aviat Husky A-1B, N299CA, Grandview Photo Inc: Accident occurred September 09, 2017 in Prairie du Chien, Crawford County, Wisconsin

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entities: 
Federal Aviation Administration / Flight Standards District Office; Milwaukee, Wisconsin
Aviat Aircraft Inc.; Afton, Wyoming

Aviation Accident Preliminary Report - National Transportation Safety Board:

Grandview Photo Inc:

NTSB Identification: CEN17LA344
14 CFR Part 91: General Aviation
Accident occurred Saturday, September 09, 2017 in Prairie du Chien, WI
Aircraft: AVIAT AIRCRAFT INC A 1B, registration: N299CA
Injuries: 1 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On September 9, 2017, about 1545 central daylight time, an Aviat Husky A-1B airplane, N299CA, experienced a flight control failure near Prairie du Chien, Wisconsin. The commercial pilot was not injured and the airplane sustained substantial damage to the left aileron. The airplane was registered to Grandview Photo Inc., and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as an aerial photography flight. Visual meteorological conditions prevailed at the time of the accident and no flight plan was filed. The flight departed Prairie du Chien Municipal Airport (PDC), Prairie du Chien, Wisconsin, flew over northwest Iowa for the aerial photography portion of the flight, and was destined for La Crosse Regional Airport (LSE), La Crosse, Wisconsin. 

The pilot reported that he ceased the aerial photography operation about 1500, climbed the airplane to 3,500 ft mean sea level (msl) and proceeded toward LSE. About 1505 he felt "light buffeting" as the airplane rolled left. He attempted to counteract the left roll by inputting right control stick pressure, but the airplane continued to roll left. He input right rudder to stop the left roll and decided to return to PDC, which was about 10 nautical miles southeast. He used the rudder to maneuver the airplane to PDC and landed uneventfully. After parking the airplane, he actuated the control stick left and right several times and the outboard end of the left aileron fell to the ground. The pilot and his mechanic disconnected the inboard aileron connection and removed it for preservation. 

The airplane and left aileron have been retained for further examination.

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