# SDR IPXA2026072759320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2026
- Submitted: July 27, 2026
- Operation: Air carrier
- Aircraft: [N438UP](https://openairdocs.org/aircraft/N438UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25469
- Aircraft time: 31,943 hours, 20,896 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Strap
- Part number: 148N31521
- Condition: Corroded
- Location: Zone 100
- 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/IPXA2026072759320

## Discrepancy

APU INLET SORROUND STRUCTURE FWD STRAP HAS CORROSION.  INSTALLED THE FWD STRAP,  UPPER SUPPORT ANGLE, LOWER SUPPORT ANGLE, UPPER CORNER ANGLE, LOWER CORNER ANGLE AT BELOW APU INLET DOOR FRAME BTW BS 1825 - 1787.45, STR 3R-6R IAW SRM 51-40-02-0G-0.

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