Service difficulty report · Engine · Boeing 747422

Difficulty date
May 5, 2011
Submitted
May 27, 2011
Operation
Air carrier
Aircraft
N175UA
Make and model
Boeing 747422
Aircraft serial
24382
Aircraft time
81,555 hours, 9,254 cycles
Engine
Pwa PW4056
Engine time
45,288 hours, 5,398 cycles
Part
Engine
Part number
PW564R
Part serial
727907
Condition
Vibration
Location
Nr 3
Part time
45,288 hours, 5,398 cycles
Stage of operation
TO
How discovered
O
Nature of condition
E
Precautionary procedure
O

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

What was found

F/A REPORTED BIG VIBRATION NEAR 2R ON TAKEOFF AND DURING CLIMB. ENG 3 VIB MSG IN CMC. SAMC TEXT: FOUND FOD DAMAGE TO NR 3 ENGINE FAN BLADES, INLET ACCOUSTIC PANELS, 10TH & 15TH HPC BLADES ALL BEYOND LIMITS. ENGINE TO BE REPLACED BEFORE ACFT RETURNS TO REVENUE SERVICE. REPLACED ENG, SEE HISTORY.