Narrative:

After takeoff; on climb out; I noted a decrease in oil pressure on the right engine. On the return to ZZZ about 15 mi west with the field in sight on a visual approach; the oil pressure started to drop below 30 psi. The right engine was secured and an uneventful single engine landing was made at ZZZ. An emergency was declared with approach with the engine shutdown and no clrncs were exceeded.

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Original NASA ASRS Text

Title: A DA 2000'S RT ENG OIL PRESS DROPPED AFTER TKOF. THE ENG WAS SHUT DOWN; AN EMER DECLARED AND THE ACFT RETURNED TO LAND.

Narrative: AFTER TKOF; ON CLBOUT; I NOTED A DECREASE IN OIL PRESSURE ON THE R ENG. ON THE RETURN TO ZZZ ABOUT 15 MI W WITH THE FIELD IN SIGHT ON A VISUAL APCH; THE OIL PRESSURE STARTED TO DROP BELOW 30 PSI. THE R ENG WAS SECURED AND AN UNEVENTFUL SINGLE ENG LNDG WAS MADE AT ZZZ. AN EMER WAS DECLARED WITH APCH WITH THE ENG SHUTDOWN AND NO CLRNCS WERE EXCEEDED.

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