# SDR AALA202608117954

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2026
- Submitted: August 12, 2026
- Operation: Air carrier
- Aircraft: [N809NN](https://openairdocs.org/aircraft/N809NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33519
- Aircraft time: 50,197 hours, 21,258 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/AALA202608117954

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: GALVANIC CORROSION ON T-CAP ON FLOORBEAM AT STA 947, LBL 52 TO RBL 52. MAINTENANCE REPLACED T-CAP ON FLOOR BEAM AT STA 947, LBL 52 TO RBL 52 IAW SRM 53-70-51-2R-5 ALT 1.

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