Narrative:

This was a commercial multi-engine training flight. The temperature was a cool 25-30 degrees. I just gave the student a mixture failure on the right engine. He brought it into feather, and completed a standard shutdown list. We then proceeded directly to the air restart list, but could not bring the engine out of feather. We proceeded back to st paul, requested priority, but did not declare an emergency. We landed without incident and were towed off the runway. My boss suggested that momentary use of the starter is enough to cycle oil through and bring the propeller out of feather. It is not. I am writing this as a caution towards other cfmei's in hopes that they do not arrive in a similar situation.

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Original NASA ASRS Text

Title: MULTI ENG TRAINING FLT TERMINATED BY FLYING BACK TO BASE AND LNDG WITH ONLY 1 ENG OPERATING DUE TO NOT BEING ABLE TO UNFEATHER AND START THE OTHER ENG AFTER SIMULATING ENG OUT PROCS.

Narrative: THIS WAS A COMMERCIAL MULTI-ENG TRAINING FLT. THE TEMP WAS A COOL 25-30 DEGS. I JUST GAVE THE STUDENT A MIXTURE FAILURE ON THE R ENG. HE BROUGHT IT INTO FEATHER, AND COMPLETED A STANDARD SHUTDOWN LIST. WE THEN PROCEEDED DIRECTLY TO THE AIR RESTART LIST, BUT COULD NOT BRING THE ENG OUT OF FEATHER. WE PROCEEDED BACK TO ST PAUL, REQUESTED PRIORITY, BUT DID NOT DECLARE AN EMER. WE LANDED WITHOUT INCIDENT AND WERE TOWED OFF THE RWY. MY BOSS SUGGESTED THAT MOMENTARY USE OF THE STARTER IS ENOUGH TO CYCLE OIL THROUGH AND BRING THE PROP OUT OF FEATHER. IT IS NOT. I AM WRITING THIS AS A CAUTION TOWARDS OTHER CFMEI'S IN HOPES THAT THEY DO NOT ARRIVE IN A SIMILAR SIT.

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.