# SDR CALA2026081818709

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2026
- Submitted: August 18, 2026
- Operation: Air carrier
- Aircraft: [N37518](https://openairdocs.org/aircraft/N37518), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64495
- Aircraft time: 18,811 hours, 6,212 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A550430
- 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/CALA2026081818709

## Discrepancy

AFT WET AREA FLOOR BEAM WITH CORROSION AREA AROUND HARD POINT FITTING BS 947 LBL 50. INSTALLED REPAIR ON STA 947.5 TRANSVERSE FLOOR BEAM UPPER CHORD IN ACCORDANCE WITH SRM 53-70-51-2R-5, AAR-MIA ESR-WI NO.: 2024492-4-15612 REV. IR, AND UNITED EC/RA 5370-01250 REV. ORIGINAL . INSTALLED REPAIR ON STA 947.5, FROM LBL58 TO RBL58, TRANSVERSE FLOORBEAM UPPER CHORD IN ACCORDANCE WITH B737-9MAX SRM 53-70-51-2R-5, AAR-MIA ESR-WI NO.: 2024492-4-15612 REV. IR, AND UNITED EC/RA 5370-01250 REV. ORIGINAL. CW ESFR ENTRY AND NO DIP REQUIRED.

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