Service difficulty report · Oil Cooler · Boeing 73776N

Difficulty date
December 29, 2020
Submitted
January 4, 2021
Operation
Air carrier
Aircraft
N7719A
Make and model
Boeing 73776N
Aircraft serial
32666
Aircraft time
47,983 hours, 23,896 cycles
Part
Oil Cooler
Part number
UA5385513
Part serial
7797
Condition
Clogged
Location
Idg
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
A

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

What was found

AFTER TAKE OFF FWD LAV SMOKE DETECTOR WENT OFF NO FIRE, CONFIRMED BY FLT ATT'S. HEAVY SMELL OF BIRD FROM ONE THAT HIT NR 1 ENGINE, SEE PREVIOUS WRITE-UP NR 1524941 LAVATORY/SMOKE C.B PULLED ON GROUND. PERFORMED NR 1 ENGINE INLET INSPECTION FOUND 2 EA BLADE PLATFORMS CRACKED AND IDG AIR/OIL COOLER CLOGGED WITH BIRD REMAINS. REMOVED AND REPLACED 2 EA FAN BLADE PLATFORMS, PER AMM 73-21-02. REMOVED AND REPLACED IDG AIR/OIL COOLER, PER AMM 24-11-21.

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