Narrative:

I was hand flying the ILS to runway 2 approach at cou. Weather was turbulent with light to moderate chop; IMC conditions. Approximately 2.5 miles beyond the final fix; yatgu; the aircraft went into a left bank; nose down attitude. Corrections were applied and positive control was regained. Declared a missed approach and requested the RNAV 2 approach. Flew the approach without incident to a safe landing. Learned two days later at the FBO that a king air had landed before me reported weather difficulties on approach. This information was not provided by the tower and could have provided additional situational awareness before beginning the approach. [The information could have lead] to selecting a different approach or going to the alternate. Going forward; I will query ATC for any abnormal weather reports at my destination. I am going to get additional training on integrating the autopilot into my ILS approaches to reduce the workload. Also; after a long duration flight in IMC (3.3 hours) I will drink a bottle of water 30-45 minutes out and eat an energy bar to insure I am at the top of my game.

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Original NASA ASRS Text

Title: PA-28 pilot reports momentarily losing control of his aircraft during a hand flown ILS approach in turbulent IMC. A go-around is initiated and vectors to the RNAV approach the same runway are received to a successful landing. Fatigue and lack of pertinent Pireps were cited as contributing factors.

Narrative: I was hand flying the ILS to Runway 2 approach at COU. Weather was turbulent with light to moderate chop; IMC conditions. Approximately 2.5 miles beyond the final fix; YATGU; the aircraft went into a left bank; nose down attitude. Corrections were applied and positive control was regained. Declared a missed approach and requested the RNAV 2 approach. Flew the approach without incident to a safe landing. Learned two days later at the FBO that a King Air had landed before me reported weather difficulties on approach. This information was not provided by the Tower and could have provided additional situational awareness before beginning the approach. [The information could have lead] to selecting a different approach or going to the alternate. Going forward; I will query ATC for any abnormal weather reports at my destination. I am going to get additional training on integrating the autopilot into my ILS approaches to reduce the workload. Also; after a long duration flight in IMC (3.3 hours) I will drink a bottle of water 30-45 minutes out and eat an energy bar to insure I am at the top of my game.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.