What was found
PROP OIL PRESSURE FLUCTUATING IN GREEN ARK AND PERODICALLY PEGGING HIGH FOR A SECOND, THEN TO GREEN ARK. ALL OTHER PROP INDICATIONS NORMAL. AIR RETURN TO DTW. MAINTENANCE REMOVED AND REPLACED RT TRANSMITTER POL PRESS ENG/GB/PN OFF AND ON IPTE119-1000-200D1, SN/OFF 3975-3-72/81, SN/ON 5587-2-438 IAW CHP 71, OPS CHECK GOOD AT THIS TIME.