Narrative:

Departed from detroit metropolitan. Destination london (gatwick). At leveloff, so noticed #2 engine oil indicating 9 gallons. We had 10 gallons on all 3 engines when on the ground. After 1 1/2 hours of flight, #2 engine oil quantity down to 7 gallons. After 2 1/2 hours quantity down to 5 gallons. At this point requested canada ATC for clearance to return to detroit. Oil quantity rapidly depleted to zero. Shut down engine when we thought we had vibration and requested vectors to yul (montreal). Landed without further incident.

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Original NASA ASRS Text

Title: A DC10-30 TURNS BACK TOWARDS DTW AFTER OVERFLYING YAY BECAUSE OF AN UNEXPLAINED LOSS OF #2 ENG OIL. FLT LANDS AT CYUL AFTER AN INFLT ENG SHUTDOWN. CZQX, NF.

Narrative: DEPARTED FROM DETROIT METRO. DEST LONDON (GATWICK). AT LEVELOFF, SO NOTICED #2 ENG OIL INDICATING 9 GALLONS. WE HAD 10 GALLONS ON ALL 3 ENGS WHEN ON THE GND. AFTER 1 1/2 HRS OF FLT, #2 ENG OIL QUANTITY DOWN TO 7 GALLONS. AFTER 2 1/2 HRS QUANTITY DOWN TO 5 GALLONS. AT THIS POINT REQUESTED CANADA ATC FOR CLRNC TO RETURN TO DETROIT. OIL QUANTITY RAPIDLY DEPLETED TO ZERO. SHUT DOWN ENG WHEN WE THOUGHT WE HAD VIBRATION AND REQUESTED VECTORS TO YUL (MONTREAL). LANDED WITHOUT FURTHER INCIDENT.

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.