# SDR DALA2026050702907

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2026
- Submitted: May 7, 2026
- Operation: Air carrier
- Aircraft: [N585NW](https://openairdocs.org/aircraft/N585NW), registered now
- Make and model: Boeing 757351
- Aircraft serial: 32985
- Aircraft time: 78,886 hours, 26,159 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Out Of Limits
- 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/DALA2026050702907

## Discrepancy

AFTER CORROSION REMOVAL, MEASUREMENT THICKNESS WAS ACOMPLISHED ON INTERCOSTAL BTW STA 1400 TO 1420 AND STGR 29R BILGE AREA AFT CARGO COMPARTEMENT, THEREFORE IT IS OUT OF LIMITS PER B757-300 SRM 53-00-04-1A PROCEDURE 1, NOTE F, DETAIL II.     CORROSION LEVEL 2. INTERCOSTAL BTW STA 1400 TO 1420 AND STGR 29R BILGE AREA AFT CARGO COMPARTEMENT WAS REPLACED PER B757-300 SRM 51-40-02-0G PAR 7. (1580326) AIRCRAFT WAS GROUNDED

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