Narrative:

After a long; steady descent into ZZZ; we were approximately abeam the field heading south; nearing or at 4000 ft MSL. The captain was the PF. The first indication there was a malfunction was the right engine oil pressure light. The following is my best recollection of engine indications immediately after observing the oil pressure light. The status page had 5 or 6 listed malfunctions; confirming right engine problems. The secondary engine instruments confirmed right engine oil pressure red; and the primary engine instruments confirmed right N1 11%. There was no master caution light or aural warning. The first officer contacted approach control and declared an emergency; informing them that we would not be able to take a short approach; nor maintain 2600 ft until abeam ZZZ1. At this point; the captain continued to fly the aircraft and worked the radios with ATC until the first officer completed his duties. We ran and completed the engine failure checklist. The first officer then contacted the flight attendants and passenger informing them of our situation. When we were ready; we accepted a turn to base and were ultimately cleared for the approach. We completed the landing checklist; landed uneventfully; and stopped off the runway so the airport fire and rescue team could observe the aircraft. After they concluded their inspection; we proceeded to the gate; where we completed the shutdown checklist.

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Original NASA ASRS Text

Title: A B757 ON APCH EXPERIENCED LOW OIL PRESSURE ON R ENG. FLT CREW SHUT DOWN THE ENG; DECLARED AN EMER; AND LANDED WITHOUT INCIDENT.

Narrative: AFTER A LONG; STEADY DSCNT INTO ZZZ; WE WERE APPROX ABEAM THE FIELD HDG S; NEARING OR AT 4000 FT MSL. THE CAPT WAS THE PF. THE FIRST INDICATION THERE WAS A MALFUNCTION WAS THE R ENG OIL PRESSURE LIGHT. THE FOLLOWING IS MY BEST RECOLLECTION OF ENG INDICATIONS IMMEDIATELY AFTER OBSERVING THE OIL PRESSURE LIGHT. THE STATUS PAGE HAD 5 OR 6 LISTED MALFUNCTIONS; CONFIRMING R ENG PROBS. THE SECONDARY ENG INSTS CONFIRMED R ENG OIL PRESSURE RED; AND THE PRIMARY ENG INSTS CONFIRMED R N1 11%. THERE WAS NO MASTER CAUTION LIGHT OR AURAL WARNING. THE FO CONTACTED APCH CTL AND DECLARED AN EMER; INFORMING THEM THAT WE WOULD NOT BE ABLE TO TAKE A SHORT APCH; NOR MAINTAIN 2600 FT UNTIL ABEAM ZZZ1. AT THIS POINT; THE CAPT CONTINUED TO FLY THE ACFT AND WORKED THE RADIOS WITH ATC UNTIL THE FO COMPLETED HIS DUTIES. WE RAN AND COMPLETED THE ENG FAILURE CHKLIST. THE FO THEN CONTACTED THE FLT ATTENDANTS AND PAX INFORMING THEM OF OUR SITUATION. WHEN WE WERE READY; WE ACCEPTED A TURN TO BASE AND WERE ULTIMATELY CLRED FOR THE APCH. WE COMPLETED THE LNDG CHKLIST; LANDED UNEVENTFULLY; AND STOPPED OFF THE RWY SO THE ARPT FIRE AND RESCUE TEAM COULD OBSERVE THE ACFT. AFTER THEY CONCLUDED THEIR INSPECTION; WE PROCEEDED TO THE GATE; WHERE WE COMPLETED THE SHUTDOWN CHKLIST.

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