<< >> NASA ASRS Report 637188, September 2004

A B737-800 was dispatched with an oil cap not secured on the engine oil tank. No loss of oil was incurred.

Attributes
ACN	637188
Time
Date	200409
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	637188
Person 2
Affiliation	company : air carrier
Function	other personnel other
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : company policies non adherence : far
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : installation
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

I was told today by the station chairman that the oil cup was found off of one of the engines. I signed for my 'P/south' and I want to report it. I checked and svced engine's oil the same way every shift and have for the last 24 yrs and can't understand how it could not have been secured after servicing the oil, because I am very picky about it. Callback conversation with reporter revealed the following information: the reporter stated the engine oil was svced on the overnight layover and he was certain the oil cap was installed. When asked by the analyst 'what is the difference between the oil cup and the oil cap? The reporter answered 'same thing.'

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Original NASA ASRS Text

Title: A B737-800 WAS DISPATCHED WITH AN OIL CAP NOT SECURED ON THE ENG OIL TANK. NO LOSS OF OIL WAS INCURRED.

Narrative: I WAS TOLD TODAY BY THE STATION CHAIRMAN THAT THE OIL CUP WAS FOUND OFF OF ONE OF THE ENGS. I SIGNED FOR MY 'P/S' AND I WANT TO RPT IT. I CHKED AND SVCED ENG'S OIL THE SAME WAY EVERY SHIFT AND HAVE FOR THE LAST 24 YRS AND CAN'T UNDERSTAND HOW IT COULD NOT HAVE BEEN SECURED AFTER SVCING THE OIL, BECAUSE I AM VERY PICKY ABOUT IT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ENG OIL WAS SVCED ON THE OVERNIGHT LAYOVER AND HE WAS CERTAIN THE OIL CAP WAS INSTALLED. WHEN ASKED BY THE ANALYST 'WHAT IS THE DIFFERENCE BTWN THE OIL CUP AND THE OIL CAP? THE RPTR ANSWERED 'SAME THING.'

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.