What was found
AFTER CREW STARTED APU, NO DUCT PRESSURE. PERFORMED APU BITE TEST FOUND FPT SENSOR FAULT, REMOVED AND REPLACED FAULT SENSING MODULE PER AMM 49-53-08, OPS CHECK GOOD. APU BLEED GOOD. NO TRAX INFO ON PART.
- Difficulty date
- July 19, 2023
- Submitted
- July 25, 2023
- Operation
- Air carrier
- Aircraft
- N379CX
- Make and model
- Boeing 767323
- Aircraft serial
- 25199
- Aircraft time
- 109,266 hours, 19,911 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Component
- Flow Sensing Mo · Boeing
- Component part number
- 38850811
- Stage of operation
- NR
- 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.