What was found
APU CT5ATP EGT HAS HISTORY OF INDICATING LOW AND ERRONEOUS. INDICATION ERRORS ARE SUSPECT. REMOVED AND REPLACED INLET TEMPERATURE SENSOR PER MM 49 61 31.
- Difficulty date
- February 13, 2012
- Submitted
- February 16, 2012
- Operation
- Air carrier
- Aircraft
- N589AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35686
- Aircraft time
- 15,892 hours, 5,106 cycles
- System (JASC)
- 4970 · APU Indicating System
- Part
- Sensor
- Part number
- MS280341
- Condition
- Defective
- Location
- Apu
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.