Narrative:

At night; following refueling; aircraft was being repositioned to hospital base. Pilot smelled an odor of fuel and elected to return to the airport. Following landing; pilot discovered fuel cap was not adequately secured. Additional attention following refueling to ensure cap is not only in place but completely secured.

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Original NASA ASRS Text

Title: Pilot of unknown type aircraft smelled fuel after takeoff; returned to airport and found fuel cap not properly secured.

Narrative: At night; following refueling; aircraft was being repositioned to hospital base. Pilot smelled an odor of fuel and elected to return to the airport. Following landing; pilot discovered fuel cap was not adequately secured. Additional attention following refueling to ensure cap is not only in place but completely secured.

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.