Narrative:

No abnormalities observed during preflight. In cruise at 23000 ft when loud 'bang' heard. Plane flying normally. Noticed flap indicator showing down about 15-20 degrees. Thought maybe flap problem. Nothing observed from captain's side window. Co-pilot looked and observed entire right wing locker had departed aircraft. Descended--slowed to maneuvering speed---made normal approach and landing.

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Original NASA ASRS Text

Title: A loud bang during cruise alerted the flight crew of a Beechcraft 200 to the loss of an after-market nacelle storage locker from the right wing.

Narrative: No abnormalities observed during preflight. In cruise at 23000 FT when loud 'bang' heard. Plane flying normally. Noticed flap indicator showing down about 15-20 degrees. Thought maybe flap problem. Nothing observed from captain's side window. Co-pilot looked and observed entire right wing locker had departed aircraft. Descended--slowed to maneuvering speed---made normal approach and landing.

Data retrieved from NASA's ASRS site as of April 2012 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.