# SDR ASAA2026072668335

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2026
- Submitted: August 31, 2026
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35182
- Aircraft time: 70,076 hours, 21,176 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A550419
- 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/ASAA2026072668335

## Discrepancy

AFT WET STA 947.5 FLOORBEAM CORRODED BETWEEN LBL -24 TO RBL-24 ON UPPER CHORD. GROUNDED - YES. REMOVED DAMAGE ON FLOORBEAM BS 947.5 LBL 24 TO RBL 24 MAX MAT LOSS 50%, DAMAGE FOUND TO BE OUT LIMITS AND REPAIRED FLOORBEAM ON BS 947.5 IAW SRM 53-70-51-2R-5.

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