Service difficulty report · Oil Cooler · Boeing 737990ER

Difficulty date
May 8, 2020
Submitted
May 11, 2020
Operation
Air carrier
Aircraft
N491AS
Make and model
Boeing 737990ER
Aircraft serial
44109
Aircraft time
17,569 hours, 5,643 cycles
Part
Oil Cooler
Part number
UA5385513
Part serial
7742
Condition
Leaking
Location
Nr 2 Idg
Part time
38,075 hours, 11,754 cycles
Stage of operation
IN
How discovered
V
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

#2 ENG IDG AIR/OIL COOLER LEAKING AND IDG OIL LEVEL LOW. GROUNDED - YES. REPLACED THE #2 ENG IDG AIR/OIL COOLER AND SERVICED THE IDG OIL TO FULL. LEAK CHECK GOOD. REF B737-900 AMM 24-11-21/401.