# SDR DALA2026061503572

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 13, 2026
- Submitted: June 15, 2026
- Operation: Air carrier
- Aircraft: [N589NW](https://openairdocs.org/aircraft/N589NW), registered now
- Make and model: Boeing 757351
- Aircraft serial: 32989
- Aircraft time: 78,387 hours, 25,878 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/DALA2026061503572

## Discrepancy

(UT) THICKNESS MEASUREMENT WAS ACCOMPLISHED ON FLOOR STRINGERS (ATTACH POINTS) 2.9, 7.55,RBL AND BTW BS 1320 TO BS 1340 OF FLOOR STRUCTURE AT AFT CARGO COMPARTMENT, AREA IT IS OUT LIMITS PER SRM 53-00-53-1A PROCEDURE 1, DETAIL III, NOTE C (DETAIL VII); AND B757 NDT-4-51-00-10 STEP 4.  FLOOR STRINGERS (ATTACH POINTS) 2.9 AND 7.55 RBL BTW BS 1320 TO BS 1340 OF FLOOR STRUCTURE AT AFT CARGO COMPARTMENT WERE REPAIRED PER B757-300 SRM. 53-00-53-2R PROCEDURE 1 REPAIR 1. (1645420) AIRCRAFT WAS GROUNDED

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