Service difficulty report · Oil Cooler · Boeing 737990ER

Difficulty date
December 20, 2018
Submitted
December 24, 2018
Operation
Air carrier
Aircraft
N472AS
Make and model
Boeing 737990ER
Aircraft serial
60580
Aircraft time
14,782 hours, 4,850 cycles
Part
Oil Cooler
Part number
UA5385513
Part serial
12540
Condition
Leaking
Location
Nr 1 Idg
Part time
14,802 hours, 4,857 cycles
Stage of operation
IN
How discovered
9
Nature of condition
K
Precautionary procedure
K

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

What was found

REF TSR 702557, FOUND #1 IDG AIR/OIL COOLER LEAKING. GROUNDED - YES. REMOVED AND REPLACED #1 (IDG) AIR/OIL COOLER PER B737-900 AMM 24-11-21. PERFORMED IDLE LEAK CHECK, GROUND VERIFICATION SUCCESFULL.