# SDR AALA202610089312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2026
- Submitted: October 8, 2026
- Operation: Air carrier
- Aircraft: [N819NN](https://openairdocs.org/aircraft/N819NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31083
- Aircraft time: 49,788 hours, 21,223 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- 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/AALA202610089312

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE:  AFT CABIN WET AREA PASSENGER FLOOR STRUCTURE UPPER SURFACE AT STA 947.5 RBL 50 - FLOOR STRUCTURE AROUND RH AFT LAV AFT OB MOUNT HAS EVIDENCE OF CORROSION .  FLOOR BEAM REPAIR DONE IAW B737 SRM 53-70-51-2R-5. MIC# 6203148

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