What was found
DURING CRUISE A POPPING NOISE WAS REPORTED FOLLOWED BY AN ENGINE VIBRATION AND RISE IN ITT. BORESCOPE INSPECTION REVEALED A MISSING 3RD STAGE IP BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED A MISSING 3RD STAGE BLADE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CRUISE A POPPING NOISE WAS REPORTED FOLLOWED BY AN ENGINE VIBRATION AND RISE IN ITT. BORESCOPE INSPECTION REVEALED A MISSING 3RD STAGE IP BLADE. DISASSEMBLY OF THE ENGINE CONFIRMED A MISSING 3RD STAGE BLADE.