Narrative:

During climbout I noticed the right-hand engine oil pressure was indicating 0 psi. All engine parameters were in the normal range during the takeoff roll. I decided in the interest of safety to return as we were less than 20 NM from the departure airport. I did not declare an emergency because all of the remaining engine instruments were within normal limits and we did not experience/observe any surges or abnormal noises. After inquiring as to why we wanted to return ATC declared an emergency for us. We landed without incident and taxied back to the gate where we were met by maintenance.

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Original NASA ASRS Text

Title: An SF340 returned to the departure airport when the flight crew noticed a zero oil pressure reading on the right engine. Because there were no other indications they elected to continue to operate the engine and not declare an emergency. The latter decision was reversed when the Tower declared an emergency when advised of the reason for their return.

Narrative: During climbout I noticed the right-hand engine oil pressure was indicating 0 PSI. All engine parameters were in the normal range during the takeoff roll. I decided in the interest of safety to return as we were less than 20 NM from the departure airport. I did not declare an emergency because all of the remaining engine instruments were within normal limits and we did not experience/observe any surges or abnormal noises. After inquiring as to why we wanted to return ATC declared an emergency for us. We landed without incident and taxied back to the gate where we were met by Maintenance.

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.