# SDR IPXA2026042043065

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2026
- Submitted: April 23, 2026
- Operation: Air carrier
- Aircraft: [N421UP](https://openairdocs.org/aircraft/N421UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25281
- Aircraft time: 35,922 hours, 23,455 cycles
- System (JASC): [5410 · Nacelle/Pylon, Main Frame](https://openairdocs.org/jasc/5410)
- Part: Attach Bracket
- Part number: 31N303313
- Condition: Cracked
- Location: Zone 400
- 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/IPXA2026042043065

## Discrepancy

AFT PYLON #1 STRUCTURE THAT ATTACH ACCESS PANEL 435AR AFT FRAME LOWER BRACKET HAS A CRACK.   INSTALLED ANGEL (BRACKET) AT #1 PYLON STRUCTURE IN PNL 435AR AFT LOWER FRAME IAW 757-200PF-SRM-51-40-05.

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