Service difficulty report · Cooler · Boeing 737990ER

Difficulty date
August 12, 2018
Submitted
August 13, 2018
Operation
Air carrier
Aircraft
N408AS
Make and model
Boeing 737990ER
Aircraft serial
41732
Aircraft time
22,517 hours, 7,380 cycles
Part
Cooler
Part number
UA5385513
Part serial
9946
Condition
Leaking
Location
Nr 2 Idg
Part time
22,513 hours, 7,378 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

NR 2 IDG FREQUENT SERVICING, ACFT GROUNDED. FOUND EVIDENCE OF IDG AIR/OIL COOLER LEAKING INTERNALLY, REMOVED AND REPLACED THE NR 2 IDG AIR/OIL COOLER IAW AMM 24-11-21, OPS & LEAK CHECKED GOOD, NO OTHER DEFECTS NOTED.