Narrative:

Takeoff was normal from atl. On climbout, takeoff +/-10 minutes (approximately), the second officer advised that he was observing a decrease in #2 engine oil quantity. At that point 2+ gal was indicated. Continued observation indicated a further gradual drop in quantity, oil pressure and oil temperature were normal at that point. Thrust was reduced on #2 engine. A further gradual drop to 1+ gal with an increase in oil temperature confirmed that oil was actually being dumped overboard. Oil pressure was remaining normal at 47 psi. At the 1+ gal point I called for the engine failure checklist immediate action items for #2 engine. The #2 engine was subsequently shut down and secured. All check appropriate checklists were accomplished. Atl ATC was advised that we had shut down #2 engine. We further requested a lower altitude and clearance to atl. Both were received. Further, an emergency was declared and it was requested that the emergency equipment be standing by. I added a comment to this request that we did not expect any specific problems on landing. The passenger were notified that we had lost oil quantity on #2 engine and we had shut it down. They were further advised that we expected a normal landing, but as a precautionary measure that we had requested emergency equipment to be standing by. The senior F/a was called to the cockpit and advised of the situation and to expect a normal landing unless otherwise advised. After all procedures were completed the remainder of the return of flight to atl was normal. Preliminary inspection of the #2 engine revealed a ruptured oil line to the #6, 7 or 8 bearing. Oil had been dumped into the #2 engine cowling.

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Original NASA ASRS Text

Title: ACR LGT RETURNS TO LAND AFTER INDICATIONS OF OIL LOSS TO #2 ENGINE.

Narrative: TKOF WAS NORMAL FROM ATL. ON CLIMBOUT, TKOF +/-10 MINUTES (APPROX), THE S/O ADVISED THAT HE WAS OBSERVING A DECREASE IN #2 ENGINE OIL QUANTITY. AT THAT POINT 2+ GAL WAS INDICATED. CONTINUED OBSERVATION INDICATED A FURTHER GRADUAL DROP IN QUANTITY, OIL PRESSURE AND OIL TEMPERATURE WERE NORMAL AT THAT POINT. THRUST WAS REDUCED ON #2 ENGINE. A FURTHER GRADUAL DROP TO 1+ GAL WITH AN INCREASE IN OIL TEMPERATURE CONFIRMED THAT OIL WAS ACTUALLY BEING DUMPED OVERBOARD. OIL PRESSURE WAS REMAINING NORMAL AT 47 PSI. AT THE 1+ GAL POINT I CALLED FOR THE ENGINE FAILURE CHECKLIST IMMEDIATE ACTION ITEMS FOR #2 ENGINE. THE #2 ENGINE WAS SUBSEQUENTLY SHUT DOWN AND SECURED. ALL CHECK APPROPRIATE CHECKLISTS WERE ACCOMPLISHED. ATL ATC WAS ADVISED THAT WE HAD SHUT DOWN #2 ENGINE. WE FURTHER REQUESTED A LOWER ALT AND CLRNC TO ATL. BOTH WERE RECEIVED. FURTHER, AN EMER WAS DECLARED AND IT WAS REQUESTED THAT THE EMER EQUIPMENT BE STANDING BY. I ADDED A COMMENT TO THIS REQUEST THAT WE DID NOT EXPECT ANY SPECIFIC PROBLEMS ON LNDG. THE PAX WERE NOTIFIED THAT WE HAD LOST OIL QUANTITY ON #2 ENGINE AND WE HAD SHUT IT DOWN. THEY WERE FURTHER ADVISED THAT WE EXPECTED A NORMAL LNDG, BUT AS A PRECAUTIONARY MEASURE THAT WE HAD REQUESTED EMER EQUIPMENT TO BE STANDING BY. THE SENIOR F/A WAS CALLED TO THE COCKPIT AND ADVISED OF THE SITUATION AND TO EXPECT A NORMAL LNDG UNLESS OTHERWISE ADVISED. AFTER ALL PROCS WERE COMPLETED THE REMAINDER OF THE RETURN OF FLT TO ATL WAS NORMAL. PRELIMINARY INSPECTION OF THE #2 ENGINE REVEALED A RUPTURED OIL LINE TO THE #6, 7 OR 8 BEARING. OIL HAD BEEN DUMPED INTO THE #2 ENGINE COWLING.

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