What was found
PROPELLERS OUT OF FEATHER, NR 1 TORQUE 11 PERCENT, NR 2 TORQUE 1 PERCENT, NR 1 POWER LEVER SLOW TO RESPOND. REMOVED FROM SERVICE. INTERROGATED CDS, FAULT CODES 132 CH B & 224 CH A & B POSTED ON THE NR 1 ENGINE. REMOVED & REPLACED THE NR 1 PCU IAW AMM 61-21-11-00-801/400-801, MCN 671290-001 ISSUE 6, MTC 6610001 & 6610002. FAULT CODES CLEARED & REMAINED CLEAR AFTER ENGINE RUN. OP CHECKED GOOD. NO LEAKS NOTED. AIRCRAFT RETURNED TO SERVICE.