Narrative:

About 5-10 seconds after takeoff the left oil pressure warning light illuminated. Oil pressure gauge was then observed dropping through 20 psi. We brought the left engine to idle and continued climbing. I pulled the left oil pressure checklist which advised if oil pressure below 20 psi to shut down the engine. We then shutdown and secured the left engine. We advised tower that we would be returning to the field and told them we would be making a precautionary landing. We landed overweight; but safely. After stopping the airplane I saw a huge streak of oil trailing from the left engine towards the rear of the airplane; and oil dripping out of the engine.

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Original NASA ASRS Text

Title: Lear 60 flight crew experiences low oil pressure on the left engine shortly after takeoff. In flight shut down ensues and flight returns for over weight landing.

Narrative: About 5-10 seconds after takeoff the L oil pressure warning light illuminated. Oil pressure gauge was then observed dropping through 20 PSI. We brought the L engine to idle and continued climbing. I pulled the L oil pressure checklist which advised if oil pressure below 20 PSI to shut down the engine. We then shutdown and secured the L engine. We advised Tower that we would be returning to the field and told them we would be making a precautionary landing. We landed overweight; but safely. After stopping the airplane I saw a huge streak of oil trailing from the L engine towards the rear of the airplane; and oil dripping out of the engine.

Data retrieved from NASA's ASRS site as of April 2012 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.