# SDR ASAA2026092969379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2026
- Submitted: October 20, 2026
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 64,427 hours, 19,256 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 141A550323
- 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/ASAA2026092969379

## Discrepancy

UPON INSTALLING INTERCOSTAL FOUND CORROSION ON FLOOR BEAM AT STA 312, LBL-23. GROUNDED - YES. REMOVED DAMAGE, FOUND TO BE OUT OF LIMITS, REPAIRED FLOOR BEAM IAW B737-800 SRM 53-10-51-2R-15 W:2" O:.125 R:.078 L:2"D:.047.

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