# SDR IPXA2026081410724

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2026
- Submitted: August 19, 2026
- Operation: Air carrier
- Aircraft: [N455UP](https://openairdocs.org/aircraft/N455UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25476
- Aircraft time: 46,102 hours, 22,631 cycles
- Engine: Rroyce RB211535E4
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Seal
- Part number: ARM877
- Condition: Torn
- Location: Nr 1 Eng Exhaust
- 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/IPXA2026081410724

## Discrepancy

NR 1 ENG OTBD EXHAUST SEAL TORN AT 9 O`CLOCK POSITION.    REMOVED AND REPLACED NR 1 ENGINE OTBD EXHAUST SEAL AT 9 O`CLOCK POSITION IAW AMM 78-11-04-308-110-R00, AND SRM 51-40-02-0G-0 PAR 5.

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