What was found
FOLLOWUP FOR MORE THAN DESIRED APU OIL CONSUMPTION. GROUNDED - YES. REMOVED & REPLACED APU OIL COOLER, ALONG WITH OIL COOLER RETURN TUBE, WHICH WAS FOUND TO HAVE A BENT LOCK TAB. LEAK CHECK OK. REF B737-800 AMM 49-91-41.
- Difficulty date
- March 12, 2021
- Submitted
- March 22, 2021
- Operation
- Air carrier
- Aircraft
- N513AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35192
- Aircraft time
- 44,649 hours, 13,197 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil Cooler
- Part number
- 1605642
- Part serial
- 3360
- Condition
- Leaking
- Location
- Apu
- Part time
- 13,454 hours, 19,709 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.