What was found
APU OIL CONSUMPTION CONTINUES TO BE HIGHER THAN EXPECTED CURRENT CONSUMPTION. TSR ISSUED. REPLACED APU OIL COOLER REF MM 49 91 41 400 801. LEAK AND OPS CHECK GOOD.
- Difficulty date
- August 5, 2011
- Submitted
- August 8, 2011
- Operation
- Air carrier
- Aircraft
- N587AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35684
- Aircraft time
- 14,392 hours, 4,311 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil Cooler
- Part number
- 1605642
- Part serial
- 3675
- Condition
- Defective
- Location
- Apu
- Part time
- 3,517 hours, 5,514 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.