As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE A CHECK, FOUND DAMAGE TO NR 1 ENGINE. FOUND HEAVY AIR LEAK AT OVERPRESS VALVE BODY ENG NR 1. REPLACED OVERPRESSURE VALVE IAW AMM. PERFORMED LEAK CHECK, ALL OKAY. FOUND EXCESSIVE METAL ON THE ACCESSORY GEARBOX CHIP-DETECTOR AND METAL ON THE MAIN MAGNETIC CHIP DETECTOR. CHANGED ENGINE. ALL TEST OKAY.