Service difficulty report · Oil Cooler · Boeing 737990ER

Difficulty date
May 8, 2020
Submitted
May 11, 2020
Operation
Air carrier
Aircraft
N431AS
Make and model
Boeing 737990ER
Aircraft serial
43255
Aircraft time
25,680 hours, 8,301 cycles
Part
Oil Cooler
Part number
UA5385513
Part serial
16812R
Condition
Leaking
Location
Nr 2 Idg
Part time
3,164 hours, 926 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

FOUND EVIDENCE OF OIL LEAKAGE FROM #2 ENGINE IDG AIR/OIL COOLER. GROUNDED - YES. REPLACED #2 ENGINE IDG AIR/OIL COOLER REF B737-900 AMM 24-11-21. LEAK CHECK GOOD.