Service difficulty report · Fan Blade · Boeing 777222

Difficulty date
December 21, 2009
Submitted
December 21, 2009
Operation
Air carrier
Aircraft
N227UA
Make and model
Boeing 777222
Aircraft serial
30555
Aircraft time
31,899 hours, 3,907 cycles
Engine
Pwa PW40903
Engine time
49,185 hours, 7,129 cycles
Part
Fan Blade
Part number
56A221
Part serial
CBDUBB7227
Condition
Damaged
Location
Nr 1 Engine
Stage of operation
CL
How discovered
O
Nature of condition
C
Precautionary procedure
A

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

What was found

POSSIBLE BIRDSTRIKE TO NR 1 ENG. ACCOMPLISHED BORESCOPE INSP. HPC 5TH, 6TH, AND 10TH STAGE BLADES AND GAS PATH NO DAMAGE FOUND. BIRD STRIKE DAMAGE FOUND ON NR 1 FAN BLADE. HAS 3 DENTS ON CONVEX SIDE AT MIDSPAN 15 IN FROM BLADE ROOT. REPLACED NR 1 BLADE INDICATED AT FAN ROTOR HUB. REPLACED NR 1 BLADE.