Service difficulty report · Engine · Boeing 777222

Difficulty date
September 26, 2007
Submitted
October 23, 2007
Operation
Air carrier
Aircraft
N780UA
Make and model
Boeing 777222
Aircraft serial
26944
Aircraft time
44,672 hours, 8,385 cycles
Engine
Pwa PW4077
Engine time
38,199 hours, 7,193 cycles
Part
Engine
Part number
PW4077
Part serial
777037
Condition
Fod
Location
Nr 1
Part time
38,199 hours, 7,193 cycles
Stage of operation
NR
How discovered
9
Nature of condition
C
Precautionary procedure
O

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

What was found

LEFT ENGINE HAS SIGNS OF BIRD STRIKE. ACCOMPLISHED INSPECTION OF ENGINE PER MM 72-00-00. CONFIRMED FOD DAMAGE TO 7TH STAGE COMPRESSOR. 7TH STAGE BLADE IS OUT OF LIMITS. WHEN LOOKING THROUGH AP5 PORT. ALSO FOUND LESS SIGNIFICANT DAMAGE TO 10TH AND 11TH STAGE. DAMAGE TO 7TH STAGE OUT OF ACCEPTABLE LIMITS. REPLACED ENGINE. PERFORMED HIGH POWER ENGINE RUN. OK FOR SERVICE.