Narrative:

Approximately 140 mi east of sfo, we noticed the left and right oil pressures were different. (Left approximately 210 psi and right 130 psi). The next observation was that the right quantity was near 0 (soon at 0). The oil pressure continued to drop and we started the low oil pressure checklist. During the checklist, the pressure dropped below red line and we were directed to the in-flight shutdown checklist. The engine was secured and we discussed a diversion. Sfo was selected and we started a slow descent. An emergency was declared and all appropriate information was given to ATC. Dispatch was contacted and concurred with our decision to divert to sfo. The flight attendants were briefed, the passenger were briefed and a cabin advisory was completed. We continued our descent into sfo and asked for emergency equipment to be standing by. Single engine approach and landing procedures were briefed including sfo's single engine missed approach procedure. A visual approach and landing was accomplished, we cleared the runway, stopped the aircraft and asked that the emergency crews inspect the aircraft. Ground crews hooked up a tug and we shut down the good engine and were towed to the gate. We then talked to flight operations, maintenance, dispatch, customer service and others and were assigned a new aircraft and continued on to hnl.

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Original NASA ASRS Text

Title: LOSS OF OIL QUANTITY AND OIL PRESSURE IN THE R ENG OF A HNL BOUND B767-300 140 NM E OF SFO MANDATES A DIVERSION TO AND EMER LNDG AT SFO, CA

Narrative: APPROX 140 MI E OF SFO, WE NOTICED THE L AND R OIL PRESSURES WERE DIFFERENT. (L APPROX 210 PSI AND R 130 PSI). THE NEXT OBSERVATION WAS THAT THE R QUANTITY WAS NEAR 0 (SOON AT 0). THE OIL PRESSURE CONTINUED TO DROP AND WE STARTED THE LOW OIL PRESSURE CHKLIST. DURING THE CHKLIST, THE PRESSURE DROPPED BELOW RED LINE AND WE WERE DIRECTED TO THE INFLT SHUTDOWN CHKLIST. THE ENG WAS SECURED AND WE DISCUSSED A DIVERSION. SFO WAS SELECTED AND WE STARTED A SLOW DSCNT. AN EMER WAS DECLARED AND ALL APPROPRIATE INFO WAS GIVEN TO ATC. DISPATCH WAS CONTACTED AND CONCURRED WITH OUR DECISION TO DIVERT TO SFO. THE FLT ATTENDANTS WERE BRIEFED, THE PAX WERE BRIEFED AND A CABIN ADVISORY WAS COMPLETED. WE CONTINUED OUR DSCNT INTO SFO AND ASKED FOR EMER EQUIP TO BE STANDING BY. SINGLE ENG APCH AND LNDG PROCS WERE BRIEFED INCLUDING SFO'S SINGLE ENG MISSED APCH PROC. A VISUAL APCH AND LNDG WAS ACCOMPLISHED, WE CLRED THE RWY, STOPPED THE ACFT AND ASKED THAT THE EMER CREWS INSPECT THE ACFT. GND CREWS HOOKED UP A TUG AND WE SHUT DOWN THE GOOD ENG AND WERE TOWED TO THE GATE. WE THEN TALKED TO FLT OPS, MAINT, DISPATCH, CUSTOMER SVC AND OTHERS AND WERE ASSIGNED A NEW ACFT AND CONTINUED ON TO HNL.

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.