# SDR DALA2026022601370

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2026
- Submitted: February 26, 2026
- Operation: Air carrier
- Aircraft: [N584NW](https://openairdocs.org/aircraft/N584NW), registered now
- Make and model: Boeing 757351
- Aircraft serial: 32984
- Aircraft time: 79,077 hours, 26,068 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- 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/DALA2026022601370

## Discrepancy

SHIP 5804 IN REF NRC 00458 AFTER REMOVAL CORROSION, (UT) THICKNESS MEASUREMENT INSPECTION WAS ACCOMPLISHED ON FLOOR SUPPORTS BTW STA 1007 TO 1040 LBL 64 ALSO BTW STA 1005 TO 1040 RBL 64, THEREFORE AREAS ARE OUT OF LIMIST PER B757-300 SRM 53-40-13-1A PROCEDURE 1 ALLOWABLE DAMAGE 1, FIG. 101 DETAIL VII , AND B757 NDT MANUAL PART 4, 51-00-10, PROCE. 2. CORRECTIVE ACTION: SUMMARY OF NRC 00609: CORROSION LEVEL 2. FLOOR SUPPORTS BTW STA 1007 TO 1040 LBL 64 ALSO BTW STA 1005 TO 1040 RBL 64 WERE REPAIRED PER B757-300 SRM 53-00-13-2R PROCEDURE 2 REPAIR 2 (1467944)

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