Service difficulty report · Oil Cooler · Boeing 737990ER

Difficulty date
July 23, 2016
Submitted
July 25, 2016
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
11,089 hours, 3,554 cycles
Part
Oil Cooler
Part number
UA5385513
Part serial
5258
Condition
Leaking
Location
Idg
Part time
24,649 hours, 10,560 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

EVIDENCE OF OIL LEAK FROM NR 1 ENGOME IDG AIR - OIL COOLER. ACFT GROUNDED. REPLACED THE NR 1 IDG AIR-OIL COOLER IAW AMM 24-11-21-000-801 AND 24-11-21-400-801. LEAK CHECKED GOOD.