# SDR IPXA2026070762443

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2026
- Submitted: July 10, 2026
- Operation: Air carrier
- Aircraft: [N453UP](https://openairdocs.org/aircraft/N453UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25474
- Aircraft time: 40,247 hours, 23,271 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 149N75595
- 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/IPXA2026070762443

## Discrepancy

INTECOSTAL BETWEEN BS 1040 AND STA 1060 LT SIDE OF THE LT ACFT EXHAUST WITH EVIDENCE OF CORROSION.   INSTALLED NEW INTERCOSTAL BETWEEN BS 1040 AND 1060 LT SIDE OF THE LT A/C EXHAUST IAW  SRM 51-40-02-0G-0.

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