# SDR IPXA2026090305799

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2026
- Submitted: September 9, 2026
- Operation: Air carrier
- Aircraft: [N441UP](https://openairdocs.org/aircraft/N441UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27386
- Aircraft time: 33,003 hours, 21,322 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Firewall
- Part number: LJ76589
- 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/IPXA2026090305799

## Discrepancy

NR 1 ENG OTBD T/R INTERNAL TOP METALLIC PLATE IS CRACKED.  REMOVED INTERNAL TOP METALLIC PLATE DAMAGED AND REMOVED SEAL RETAINER (FOR ACCESS). #1 ENG O/B T/R. IAW B757-200PF SRM 51-40-02-0G-0. INSTALLED INTERNAL TOP METALLIC PLATE AND SEAL RETAINER. IAW B757-200PF SRM 51-40-02-0G-0.

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