Narrative:

On rotation left engine oil quantity dropped from 20 quarts to 10 quarts. Upon shutdown the quantity rose to 13 quarts. Maintenance filled the left engine oil quantity to full and it took 13 pints. The oil consumption limits and the technical waiver limits were exceeded; nevertheless the aircraft was put back in service; why? Remember that said quoted 'consumption' occurred within less than 1.5 mins of operation. I was told that the aircraft needed an engine change. Maintenance agreed. After the shift change; things changed. Very disappointing. Technician needs to realize that there is a big difference between oil consumption over a 3 hour flight versus a 1.5 min takeoff roll.

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Original NASA ASRS Text

Title: B757 FLT CREW HAS LOSS OF ENG OIL OUTSIDE NORMAL LIMITS DURING TKOF.

Narrative: ON ROTATION L ENG OIL QUANTITY DROPPED FROM 20 QUARTS TO 10 QUARTS. UPON SHUTDOWN THE QUANTITY ROSE TO 13 QUARTS. MAINT FILLED THE L ENG OIL QUANTITY TO FULL AND IT TOOK 13 PINTS. THE OIL CONSUMPTION LIMITS AND THE TECHNICAL WAIVER LIMITS WERE EXCEEDED; NEVERTHELESS THE ACFT WAS PUT BACK IN SVC; WHY? REMEMBER THAT SAID QUOTED 'CONSUMPTION' OCCURRED WITHIN LESS THAN 1.5 MINS OF OP. I WAS TOLD THAT THE ACFT NEEDED AN ENG CHANGE. MAINT AGREED. AFTER THE SHIFT CHANGE; THINGS CHANGED. VERY DISAPPOINTING. TECHNICIAN NEEDS TO REALIZE THAT THERE IS A BIG DIFFERENCE BTWN OIL CONSUMPTION OVER A 3 HR FLT VERSUS A 1.5 MIN TKOF ROLL.

Data retrieved from NASA's ASRS site as of January 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.