# SDR IPXA2025080673155

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2025
- Submitted: August 14, 2025
- Operation: Air carrier
- Aircraft: [N433UP](https://openairdocs.org/aircraft/N433UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25464
- Aircraft time: 30,544 hours, 21,715 cycles
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Support Angle
- Part number: 148N31521
- Condition: Corroded
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2025080673155

## Discrepancy

UPON REMOVING APU INLET ASSY, FOUND FWD LWR ANGLE AT STA. 1745, UPR MID AND LWR MID ANGLES BETWEEN BS 1825 AND 1745, TO BE CORRODED.  REMOVED 4 EA ANGLES, FWD LWR AND FWD UPR ANGLES  AT BS 1784, UPR MID AND LWR MID ANGLES P/N 148N3152-2, P/N 148N3152-1 BETWEEN STA. 1825 - STA 1784.LOCATED AND DRILLED NEW FWD STRAP AT STA 1787 BETWEEN STR 3R -STR 6R AT APU INLET ASSY IAW SRM 51-40-05-0G-0.FABRICATED ANGLES FOR APU INLET ASSY SUPPORT, IAW 148N3141/SAMPLE AND 148N3152/SAMPLE.INSTALLED NEW FWD STRAP, NEW LOWER MIDDLE ANGLES FWD LOWER AND FORWARD UPPER ANGLES.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.