Service difficulty report · Engine · Boeing 767322

Difficulty date
November 24, 2025
Submitted
November 28, 2025
Operation
Air carrier
Aircraft
N649UA
Make and model
Boeing 767322
Aircraft serial
25286
Aircraft time
131,018 hours, 20,068 cycles
Engine
Pwa PW4060
Part
Engine
Condition
Fod
Location
Left
Stage of operation
NR
How discovered
O
Nature of condition
C, E
Precautionary procedure
O

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

What was found

IN CLIMB WITH CLIMB POWER SET EXCESSIVE VIBRATION LEFT ENGINE. 5 .0 VIB WITH FEEL/SOUND.AFTER LANDING IT WAS FOUND AT THE ENGINE NR 1 SIGNALS OF BIRD STRIKE, WITH BLOOD AND STRONG SMELL OF BIRD. AFTER INSPECTION OF BIRD STRIKE REFER AMM 05-51-18-212-001, REMOVED THE INLET CONE REFER AMM 72-31-01-024-001-N00, RECORDED THE BLADES SEQUENCE AND IT WAS FOUND BLADES AT POSITIONS 18, 19, 20, 21, 22, 23, 34, 35 AND 36 DAMAGED, ONE OUTLET GUIDE VANE AT 1 O'CLOCK POSITION WITH MISSING MATERIAL AND PANEL NR 1 OF THE FAN EXIT LINER SEGMENT OUTTER PANEL WITH HOLE. FOR FURTHER EVALUATE IT'S IS NECESSARY TO REMOVE SPINNER FRONT CONE, SPINNER REAR CONE AND FAN BLADES DAMAGED FOR REFERENCE SEE AMM 72-31-02/401. IT WAS REMOVED SPINNER FRONT CONE, SPINNER REAR CONE IAW AMM 72-31-01-024-001-N00. IT WAS REMOVED ENGINE NR 1 FAN BLADES FULL SET AS PER AMM 72-31-02-004-012-N00. INITIATED BIRD STRIKE INSPECTION BY EC/RA 7200-07362, PERFORMED SHEET 1 BLOCKS 1 AND 10. FOUND SEVERAL DAMAGES AT ENGINE FAN BLADES NUMBER 18, 19, 20, 21, 22, 23, 34, 35 AND 36. NECESSARY TO CONTINUE BLOCK 11 BOROSCOPE INSPECTION. NECESSARY BOROSCOPE INSPECTION BY EC/RA 7200-07362 SHEET 1 BLOCK 11. IT WAS ACCOMPLISHED BORESCOPE INSPECTION AS PER EC/RA 7200-07362 SHEET 1 - BLOCK 11, NO ABNORMAL CONDITION FOUPERFORMED TASK 71-00-00-725-008-N00 TEST 8 VIBRATION SURVEY VIBRATION VALUES WITHIN LIMITS DETERMINED PER TASK ABOVE