Narrative:

Aircraft X called for oil. I went and svced the oil at XA15. #2 engine oil cap chain was broke so I put the cap on my golf cart. After service I put a rag on my cart and the rag covered the cap. I missed putting the cap back on. About XP30 I was moving stuff on my golf cart and found the cap. I called my control and gave a list of planes that could be missing the cap. At XH30 in ZZZ; they found aircraft X and replaced the cap. I feel if the cap chain was not broke this could not have happened.

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Original NASA ASRS Text

Title: WHILE SERVICING THE #2 ENG OIL ON A B737-700; MECHANIC PLACES THE OIL CAP ON HIS WORK CART AND ACCIDENTALLY COVERS CAP WITH A WORK RAG. CHAIN LANYARD ATTACHING CAP TO OIL TANK WAS MISSING AND ACFT DEPARTS WITHOUT THE CAP.

Narrative: ACFT X CALLED FOR OIL. I WENT AND SVCED THE OIL AT XA15. #2 ENG OIL CAP CHAIN WAS BROKE SO I PUT THE CAP ON MY GOLF CART. AFTER SVC I PUT A RAG ON MY CART AND THE RAG COVERED THE CAP. I MISSED PUTTING THE CAP BACK ON. ABOUT XP30 I WAS MOVING STUFF ON MY GOLF CART AND FOUND THE CAP. I CALLED MY CTL AND GAVE A LIST OF PLANES THAT COULD BE MISSING THE CAP. AT XH30 IN ZZZ; THEY FOUND ACFT X AND REPLACED THE CAP. I FEEL IF THE CAP CHAIN WAS NOT BROKE THIS COULD NOT HAVE HAPPENED.

Data retrieved from NASA's ASRS site as of May 2009 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.