A B757-200 on takeoff lost all #2 engine oil caused by the oil cap not replaced after servicing.

Attributes
ACN	502425
Time
Date	200012
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
ASRS Report	502425
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far
Independent Detector	aircraft equipment other aircraft equipment : #2 oil quantity indicator other other : person 2
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : installation performance deficiency : logbook entry
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

On dec/tue/00, I removed and replaced the #2 engine oil cap after servicing in accordance with job card paperwork. On feb/wed/01, I was informed that, upon takeoff at ZZZ on dec/wed/00, the r-hand engine lost all oil. ZZZ maintenance reported oil cap missing. They replaced oil cap, svced oil tank, inspected chip detectors, performed pwrplant inspection in accordance with maintenance manual operations normal (log page attached). The float valve in the oil tank failed to close due to oil cap missing or incorrectly installed (reference maintenance manual 79-11-00-0 2(4) attached). The float valve was not checked or documented in ZZZ. To this date, the engine still remains on aircraft. The incident is under investigation.

Original NASA ASRS Text

Title: A B757-200 ON TKOF LOST ALL #2 ENG OIL CAUSED BY THE OIL CAP NOT REPLACED AFTER SVCING.

Narrative: ON DEC/TUE/00, I REMOVED AND REPLACED THE #2 ENG OIL CAP AFTER SVCING IN ACCORDANCE WITH JOB CARD PAPERWORK. ON FEB/WED/01, I WAS INFORMED THAT, UPON TKOF AT ZZZ ON DEC/WED/00, THE R-HAND ENG LOST ALL OIL. ZZZ MAINT RPTED OIL CAP MISSING. THEY REPLACED OIL CAP, SVCED OIL TANK, INSPECTED CHIP DETECTORS, PERFORMED PWRPLANT INSPECTION IN ACCORDANCE WITH MAINT MANUAL OPS NORMAL (LOG PAGE ATTACHED). THE FLOAT VALVE IN THE OIL TANK FAILED TO CLOSE DUE TO OIL CAP MISSING OR INCORRECTLY INSTALLED (REF MAINT MANUAL 79-11-00-0 2(4) ATTACHED). THE FLOAT VALVE WAS NOT CHKED OR DOCUMENTED IN ZZZ. TO THIS DATE, THE ENG STILL REMAINS ON ACFT. THE INCIDENT IS UNDER INVESTIGATION.

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.