What was found
DURING TRANSIT TO PLATFORM WITH APU OUT OF SERVICE AND THE LEFT ENGINE DID OPERATE, IT HAD AN FOD DUE TO INGESTION OF WOOD CHOCK. DURING REVISION WERE DETECTED FOUR BLADES AND NOISE SUPPRESSOR WITH LEAST DAMAGES AND THERE WERE REWORKED IAW 72-33-22. BOROSCOPE INSPECTION WAS PERFORMED TO THE SIX, SEVEN AND THIRTEEN STAGES, BEING ALL CORRECT. THE LEFT ENGINE RUNNING TEST WAS PERFORMED IAW MM 71-00-00, ALL CORRECT. THE FCU AND PNEUMATIC SHUT OFF VALVE APU WERE REPLACED IAW 49-30-01, CONTINUED PNEUMATIC APU OUT OF SERVICE.