SDR P5CA0701511

Service difficulty report · Compressor · Boeing 74746NF

Difficulty date: January 4, 2007
Submitted: March 1, 2007
Operation: Air carrier
Aircraft: N451PA
Make and model: Boeing 74746NF
Aircraft serial: 30809
Aircraft time: 25,714 hours, 4,406 cycles
Engine: Ge CF680C2*
Engine time: 25,714 hours, 4,406 cycles
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Compressor
Condition: Damaged
Location: Nr 3 Engine
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING TREND MONITORING OF NR 3 ENGINE, A SHIFT IN PARAMETERS WAS NOTICED. AN INSPECTION ON THE NR 3 ENGINE WAS REQUESTED AND THE AIRCRAFT WAS DIVERTED TO PIK FOR A BORESCOPE INSPECTION. INSPECTED NR 3 ENGINE AND FOUND 11TH STAGE DAMAGE. REMOVED AND REPLACED NR 3 ENGINE PER POLAR WORK CARDS P71-00-00-1A/2A, P71-71-002A, P78-34-02-2A, P7200-101, P7100-002.

More about the Boeing 747-46NF