# SDR ASAA2026092569397

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2026
- Submitted: October 22, 2026
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 62,825 hours, 18,965 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A55067
- 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/ASAA2026092569397

## Discrepancy

AFT WET AREA FLOORBEAM STA 986 RBL 40 TO RBL 50 CORRODED. GROUNDED - YES. REMOVED CORROSION FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1, REPAIRED FLOORBEAM IAW SRM 53-70-51-2R-4.

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