# SDR DALA2026010500059

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 2, 2026
- Submitted: January 5, 2026
- Operation: Air carrier
- Aircraft: [N555NW](https://openairdocs.org/aircraft/N555NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 33391
- Aircraft time: 63,261 hours, 28,684 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- 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/DALA2026010500059

## Discrepancy

FLC WEB CORRODED IN X2 SPOTS BS 620 - 640 JUST OTBD OF S27L.  BLENDED CORROSION ON FLC WEB BS 620, STR 27L. NOMINAL THICKNESS .036 REMOVED .006 OF MATERIAL REMAINING THICKNESS .030. REMOVED CORROSION IAW 53-00-04-1A-1 DETAIL II.  R & R WEB IAW SRM 51-40-02 PARAGRAP 4 AND DWG 143N5359. (1381786)

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