# SDR DALA2026050702910

- 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: Floor Support
- Condition: Out Of Limits
- Location: Zone 200
- 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/DALA2026050702910

## Discrepancy

CORROSION OUT OF LIMITS, THICKNESS MEASUREMENT WAS ACCOMPLISHED ON FLOOR STRINGERS UPPER/LWR (ATTACH POINTS) 2.9, 7.55 & 10.45 LBL/RBL AND BTW BS 1508 TO BS 1511 OF FLOOR STRUCTURE AT AFT CARGO COMPARTMENT PER SRM 53-00 -53-1A PROCEDURE 1, ALLOWABLE DAMAGE 1 FIGURE 101, DETAIL IX. AND B757 NDT MANUAL PART 51-00-10 PAR. 4. A.  CORROSION LEVEL 2. FLOOR STRINGERS UPPER/ LWR (ATTACH POINTS) 2.9, 7.55 & 10.45 LBL/RBL AND BTW BS 1508 TO BS 1511 OF FLOOR STRUCTURE AT AFT CARGO COMPARTMENT WERE REPAIRED PER B757-300 SRM 53-00-53-2R PROCEDURE 1 REPAIR 1 (1580827) AIRCRAFT WAS GROUNDED

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