# SDR IPXA2026051179144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2026
- Submitted: May 26, 2026
- Operation: Air carrier
- Aircraft: [N428UP](https://openairdocs.org/aircraft/N428UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25459
- Aircraft time: 33,361 hours, 22,894 cycles
- System (JASC): [5350 · Aerodynamic Fairings](https://openairdocs.org/jasc/5350)
- Part: Fairing
- Part number: 149N712541
- 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/IPXA2026051179144

## Discrepancy

FWD, LH LOWER WTB PANEL LANDING INSIDE ACCESS PNL 193AL HAS SURFACE CORROSION. STICKER #83-003. ATA 53-30.  REMOVED 1EA CORRODED WEB FROM INTERCOSTAL ASSY. INSTALLED (15EA) NEW NUTPLATES ON WEB P/N 149N7125-41SAAU, IAW DWG 149N7125/SAMPLE AND B757-200PF SRM 51-40-02-0G-0. OK TO INSTALL 1EA WEB AND 1EA INTERCOSTAL ASSY. INSTALLED 1EA WEB P/N: 149N7125-41SAAU AND 1EA INTERCOSTAL ASSY AT LH LOWER WTB PANEL LANDING BTW STA 860 TO STA 900 LBL 31 IAW B757-200PF SRM 51-40-02-0G-0 PARAG.4 AND 7.

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