Narrative:

On a flight from cordova to anchorage, climbing VFR through 11000 ft (approximately) we noticed a warning light flicker. After 3 flickers, abeam valdez, we positively idented the warning light as the #2 engine oil pressure light. The oil pressure gauge was reading between 40-55 psi (the caution range) with a bouncing needle, oil temperature normal and consistent with #1 engine, all other engine instruments were reading normal. From previous experience with this aircraft and the oil/temperature gauge (gauge failure several weeks prior), we decided that it could be another gauge problem. We asked flight attendant #1 to look out the window to see if she could see any oil. She did not. We referred to the checklist for low oil pressure. The captain had me get a clearance while he talked to the flight attendant. We leveled out at 15000 ft and were cleared to anchorage via the ellam 2 arrival. Shortly after that point the oil pressure went to zero, so we did an emergency shutdown. The captain declared an emergency, informed the flight attendant and passenger, and also talked to company. Unfortunately, the #2 communication was not working, so we were shuffling between center and company on communication #1. The rest of the flight went as normal, completing both the descent and approach and final checklist, followed by a beautiful landing.

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Original NASA ASRS Text

Title: PART 121 MDT LOSS OF OIL PRESSURE, SHUTS DOWN ENG, DECLARES EMER, LANDS ANC.

Narrative: ON A FLT FROM CORDOVA TO ANCHORAGE, CLBING VFR THROUGH 11000 FT (APPROX) WE NOTICED A WARNING LIGHT FLICKER. AFTER 3 FLICKERS, ABEAM VALDEZ, WE POSITIVELY IDENTED THE WARNING LIGHT AS THE #2 ENG OIL PRESSURE LIGHT. THE OIL PRESSURE GAUGE WAS READING BTWN 40-55 PSI (THE CAUTION RANGE) WITH A BOUNCING NEEDLE, OIL TEMP NORMAL AND CONSISTENT WITH #1 ENG, ALL OTHER ENG INSTS WERE READING NORMAL. FROM PREVIOUS EXPERIENCE WITH THIS ACFT AND THE OIL/TEMP GAUGE (GAUGE FAILURE SEVERAL WKS PRIOR), WE DECIDED THAT IT COULD BE ANOTHER GAUGE PROB. WE ASKED FLT ATTENDANT #1 TO LOOK OUT THE WINDOW TO SEE IF SHE COULD SEE ANY OIL. SHE DID NOT. WE REFERRED TO THE CHKLIST FOR LOW OIL PRESSURE. THE CAPT HAD ME GET A CLRNC WHILE HE TALKED TO THE FLT ATTENDANT. WE LEVELED OUT AT 15000 FT AND WERE CLRED TO ANCHORAGE VIA THE ELLAM 2 ARR. SHORTLY AFTER THAT POINT THE OIL PRESSURE WENT TO ZERO, SO WE DID AN EMER SHUTDOWN. THE CAPT DECLARED AN EMER, INFORMED THE FLT ATTENDANT AND PAX, AND ALSO TALKED TO COMPANY. UNFORTUNATELY, THE #2 COM WAS NOT WORKING, SO WE WERE SHUFFLING BTWN CTR AND COMPANY ON COM #1. THE REST OF THE FLT WENT AS NORMAL, COMPLETING BOTH THE DSCNT AND APCH AND FINAL CHKLIST, FOLLOWED BY A BEAUTIFUL LNDG.

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.