Service difficulty report · Oil Cooler · Boeing 737

Difficulty date
July 8, 2022
Submitted
July 11, 2022
Operation
Air carrier
Aircraft
N866NN
Make and model
Boeing 737
Aircraft serial
40584
Aircraft time
34,660 hours, 14,358 cycles
Part
Oil Cooler
Part number
1605642
Condition
Leaking
Location
Zone 300 - Stabs
Component
Apu · Honeywell
Component part number
351A10001
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: BELOW 10,000 FT ON CLIMBOUT HAD A DIRTY FOOT ODER, WENT AWAY. DESCENDING BELOW 10,000 FT IT CAME BACK. ACCOMPLISHED SMOKE ODOR FUME INITIAL TROUBLESHOOTING JOB CARD 08L00021001. APU OIL COOLER FOUND LEAKING. REPLACED OIL COOLER PER AMM 49-91-41. LEAK CHECKED GOOD. ACCOMPLISHED PACK BURN. NO ODOR DETECTED.