What was found
AFTER START, WHEN CONDITION LEVERS ADVANCED TO 1020, PROP NR2 DID NOT ADVANCE OR COME OUT OF START AND FEATHER. AFTER 90 SECONDS,PLACED THE NR2 CONDITION LEVER TO START & FEATHER FOR 1 MIN. THEN ADVANCED TO 1020, THE PROP TOOK APPROX 45 SECONDS. 2ND ATTEMPT PROP TOOK APPROX 45 SECONDS TO UNFEATHER. RETURNED CONDITION LEVER TO START & FEATHER FOR 1 MINUTE. ON 3RD ATTEMPT, PROP UNFEATHERED IN APPROX 30 SECONDS. INTERROGATED CDS & FOUND NO FAULT CODES. R & R OVERSPEED GOVERNOR IAW AMM 61-20-26 PGS 401-411. LEAK CK & OPS CK GOOD. C/W H/S 61-0038. NR2 ENG UNFEATHERS IN 15 SECONDS. RETURNED TO SERVICE.