Narrative:

We performed a shutdown of the #1 engine for low oil pressure. We were just starting a descent. We noticed a fluctuation of the #1 oil pressure. It was not a pressure that required a shutdown at that time so we elected to notify the flight attendant that we may have to shut it down. I informed her and a few minutes later the pressure drop and the #1 oil pressure warning light illuminated. The captain and I proceeded with the engine shutdown procedure checklist and declared the emergency to ATC. I then made a call to dispatch with our problem. They agreed with our choice to divert. Then briefed the flight attendant that it was to be a normal landing not requiring them to brace; then made an announcement to the passengers telling them that it was to be a normal landing and we were diverting. After communicating with everyone; we prepared for the approach; I obtained the weather and we performed the approach brief and the single engine preliminary landing check. It was a visual approach. We entered the pattern; performed the single engine landing checklist; reviewed the single-engine go around procedure; and the captain made a nice single engine landing. We informed the tower we could taxi off the runway. He had the trucks inspect the airplane and I completed the single engine after landing checklist. Once we were given the ok to taxi we taxied to the gate. I think the event was handled well and the passengers seemed to be fine. Swapped airplanes and left with the passengers in 50 minutes. Afterwards; the captain and I discussed that we should have had a little more time on the ground to talk about the event as a crew.

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Original NASA ASRS Text

Title: A Dash 8 flight crew shut down an engine because of low oil pressure. They ran the procedures and diverted to a nearby airport.

Narrative: We performed a shutdown of the #1 engine for low oil pressure. We were just starting a descent. We noticed a fluctuation of the #1 oil pressure. It was not a pressure that required a shutdown at that time so we elected to notify the flight attendant that we may have to shut it down. I informed her and a few minutes later the pressure drop and the #1 oil pressure warning light illuminated. The Captain and I proceeded with the engine shutdown procedure checklist and declared the emergency to ATC. I then made a call to Dispatch with our problem. They agreed with our choice to divert. Then briefed the Flight Attendant that it was to be a normal landing not requiring them to brace; then made an announcement to the passengers telling them that it was to be a normal landing and we were diverting. After communicating with everyone; we prepared for the approach; I obtained the weather and we performed the approach brief and the single engine preliminary landing check. It was a visual approach. We entered the pattern; performed the single engine landing checklist; reviewed the single-engine go around procedure; and the Captain made a nice single engine landing. We informed the tower we could taxi off the runway. He had the trucks inspect the airplane and I completed the single engine after landing checklist. Once we were given the OK to taxi we taxied to the gate. I think the event was handled well and the passengers seemed to be fine. Swapped airplanes and left with the passengers in 50 minutes. Afterwards; the Captain and I discussed that we should have had a little more time on the ground to talk about the event as a crew.

Data retrieved from NASA's ASRS site as of April 2012 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.