What was found
APU SHUT OFF FAULT LIGHT ILLUMINATED. PERFORMED FIM TASK 49 90 00 810 801 FOUND APU OIL COOLER OBSTRUCTED WITH DEBRIS. REMOVED AND REPLACED APU OIL COOLER REF M/M 49 91 41, OPS AND LEAK CHECKS NORMAL.
- Difficulty date
- August 16, 2011
- Submitted
- August 18, 2011
- Operation
- Air carrier
- Aircraft
- N532AS
- Make and model
- Boeing 737890
- Aircraft serial
- 36346
- Aircraft time
- 4,335 hours, 1,442 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil Cooler
- Part number
- 1605642
- Part serial
- 4094
- Condition
- Obstructed
- Location
- Apu
- Part time
- 1,628 hours, 2,149 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.