Narrative:

L12, redlands, ca, on an IFR departure to VFR on top of broken layer. Departure ok. Canceled IFR over riverside and continued on DVFR flight to mmsf, san felipe, mexico, baja. Right engine lost oil pressure and quit. Feathered propeller and returned to L12 VFR. No problems. Maintenance still looking for reason for failure. Canceled flight plan with riverside flight service. Aircraft performed well on 1 engine.

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Original NASA ASRS Text

Title: C310 PLT RETURNS TO L12 AFTER LOSING 1 ENG AT 9500 FT S OF RAL VOR.

Narrative: L12, REDLANDS, CA, ON AN IFR DEP TO VFR ON TOP OF BROKEN LAYER. DEP OK. CANCELED IFR OVER RIVERSIDE AND CONTINUED ON DVFR FLT TO MMSF, SAN FELIPE, MEXICO, BAJA. R ENG LOST OIL PRESSURE AND QUIT. FEATHERED PROP AND RETURNED TO L12 VFR. NO PROBS. MAINT STILL LOOKING FOR REASON FOR FAILURE. CANCELED FLT PLAN WITH RIVERSIDE FLT SVC. ACFT PERFORMED WELL ON 1 ENG.

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.