Narrative:

On the descent passing through approximately 22;000 ft; the first officer and I felt what seemed like wake turbulence. The flight attendant felt it as well and called the flight deck to ask what it was; I informed her that it was turbulence and everything was ok. The flight continued uneventfully to a normal landing. Upon completing the post flight inspection; the first officer found the top half of the right engine cowl was missing.

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Original NASA ASRS Text

Title: The Flight Crew of a CRJ-200 thought they had encountered wake turbulence during descent around 22;000 FT. Upon inspection after landing; they discovered the top half of the right engine cowling was missing and presumed lost enroute.

Narrative: On the descent passing through approximately 22;000 FT; the First Officer and I felt what seemed like wake turbulence. The flight attendant felt it as well and called the flight deck to ask what it was; I informed her that it was turbulence and everything was OK. The flight continued uneventfully to a normal landing. Upon completing the post flight inspection; the First Officer found the top half of the right engine cowl was missing.

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.