What was found
(CAN) DURING POWER ON STALL THE PROPELLER CAME TO A FULL STOP, THROTTLE WAS AT 1700 RPM AND THE NOSE POINTED UP FOR A STALL CONFIGURATION AND ON POWER APPLICATION THE ENGINE CAME TO A FULL STOP. THE AIRCRAFT WAS THEN POINTED NOSE DOWN, THE PROPELLER STARTED WIND MILLING AND ON THROTTLE APPLICATION THE ENGINE RE-STARTED. A/C RETURNED TO BASE WITH NO PROBLEM. THIS WAS A NEW RETROFIT EQUIPPED A/C WITH A COMPLETE -54 ENGINE CONFIGURATION. MFG WERE INFORMED AND THE COMPONENTS ARE SCHEDULED TO BE TESTED AND REMOVED BY MFG AT THE END OF THIS WEEK. (TC NR 20071018001)