Narrative:

Did normal preflight. Everything looked great. Landed with fuel load expected. Upon postflt walkaround, discovered fuel cap missing. Further investigation of problem required to conclude possible problem.

Google
 

Original NASA ASRS Text

Title: A FALCON 20 POSTFLT CHK REVEALED FUEL CAP MISSING. RPTR ACCOMPLISHED PREFLT CHK AND RPTS ALL OK.

Narrative: DID NORMAL PREFLT. EVERYTHING LOOKED GREAT. LANDED WITH FUEL LOAD EXPECTED. UPON POSTFLT WALKAROUND, DISCOVERED FUEL CAP MISSING. FURTHER INVESTIGATION OF PROB REQUIRED TO CONCLUDE POSSIBLE PROB.

Data retrieved from NASA's ASRS site as of July 2007 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.