What was found
APU INLET DUCT HAS EVIDENCE OF CORROSION AROUND NUT PLATES. REMOVED AND REPLACED SUPPORT ANGLES AND STRAP IAW DWGS 148N3152, 148N3141, 148N3138, AND 148N3105 IAW SRM 51 GUIDELINES, IAW GMM REV 12 SECTION 09-08.
- Difficulty date
- October 28, 2025
- Submitted
- January 6, 2026
- Operation
- Air carrier
- Aircraft
- N414UP
- Make and model
- Boeing 75724APF
- Aircraft serial
- 23854
- Aircraft time
- 38,644 hours, 25,891 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Strap
- Part number
- 148N313820
- Condition
- Corroded
- Location
- Apu Inlet
- 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.