Narrative:

On descent through about 11;000 ft into [destination]; captain pulled power to idle to begin slowing. We received an 'engine oil' aural warning along with master warning; triple chime; and left engine oil pressure message. Captain continued to fly the airplane; and we discovered that the engine was spooling down. I pulled out the QRH and ran the 'single engine' procedures checklist. We didn't declare an emergency right away; the captain continued to fly and did the radios; while I ran the checklist. We decided to attempt a relight since we were on a downwind. I completed the single engine procedures; determined that no damage was suspected. I then complied with the relight procedures in the QRH. When I pressed the start button; nothing happened; the N2 never spooled; and it remained at 0 the entire time. I pressed the button for about 10 seconds; decided it wasn't to be. I completed the checklist; which then led to a single engine landing checklist. At this point the captain declared an emergency. I completed the single engine landing checklist. I then called the flight attendant and we discussed the situation; and I gave her the details and instructions depending on what our outcome would be. I then made a quick PA alerting the passengers to the presence of the emergency vehicles that would be out as a precaution. We then entered about a 10 mile left base; landed and taxied to the gate without any further incident. Everyone seemed to be happy as they got off the airplane. I think we handled it well; tried to relight the engine; then decided that it was best to move on and prep for a single engine landing. We communicated well with each other as well as the passengers.

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Original NASA ASRS Text

Title: CRJ-200 First Officer reported on descent they received a left engine oil pressure warning; likely as a result of a flameout. A restart attempt was unsuccessful and the flight landed after declaring an emergency.

Narrative: On descent through about 11;000 FT into [destination]; Captain pulled power to idle to begin slowing. We received an 'Engine Oil' aural warning along with master warning; triple chime; and left engine oil pressure message. Captain continued to fly the airplane; and we discovered that the engine was spooling down. I pulled out the QRH and ran the 'Single Engine' procedures checklist. We didn't declare an emergency right away; the Captain continued to fly and did the radios; while I ran the checklist. We decided to attempt a relight since we were on a downwind. I completed the single engine procedures; determined that no damage was suspected. I then complied with the relight procedures in the QRH. When I pressed the start button; nothing happened; the N2 never spooled; and it remained at 0 the entire time. I pressed the button for about 10 seconds; decided it wasn't to be. I completed the checklist; which then led to a Single Engine Landing checklist. At this point the Captain declared an emergency. I completed the Single Engine Landing checklist. I then called the Flight Attendant and we discussed the situation; and I gave her the details and instructions depending on what our outcome would be. I then made a quick PA alerting the passengers to the presence of the emergency vehicles that would be out as a precaution. We then entered about a 10 mile left base; landed and taxied to the gate without any further incident. Everyone seemed to be happy as they got off the airplane. I think we handled it well; tried to relight the engine; then decided that it was best to move on and prep for a single engine landing. We communicated well with each other as well as the passengers.

Data retrieved from NASA's ASRS site as of July 2013 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.