What was found
APU EGT (CT5ATP) TREND DATA SHOWS A SUDDEN SHIFT. INDICATION ERRORS ARE SUSPECT. REPLACED APU INLET TEMP SENSOR REF MM 49 61 31, OPS CHECK IS GOOD.
- Difficulty date
- January 20, 2012
- Submitted
- January 20, 2012
- Operation
- Air carrier
- Aircraft
- N566AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35181
- Aircraft time
- 19,256 hours, 5,973 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
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.