# SDR IPXA2026091153076

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2026
- Submitted: September 11, 2026
- Operation: Air carrier
- Aircraft: [N461UP](https://openairdocs.org/aircraft/N461UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28265
- Aircraft time: 43,577 hours, 22,026 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- 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/IPXA2026091153076

## Discrepancy

LONGERON 17L UPPER SURFACE AREA BETWEEN STA 1885 AND 1963 AND ATTACHMENT TO SKIN PANELS TO INCLUDE ALL ADJACENT STRUCURE HAS AREAS OF CORROSION AND MISSING PROTECTIVE FINISH AND TOPCOAT. APPLIED TOPCOAT TO REWORKED AREAS AT LONGERON 17L UPPER SURFACE AREA BETWEEN STA 1885 AND 1963 REF. B757 AMM 51-21-15-370-801.

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