# SDR CALA2023111703413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 2023
- Submitted: November 17, 2023
- Operation: Air carrier
- Aircraft: [N16713](https://openairdocs.org/aircraft/N16713), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28784
- Aircraft time: 74,420 hours, 26,335 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5504
- Condition: Corroded
- Location: Sta947 Lbl44-54
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023111703413

## Discrepancy

(B737-06-3-0049) CORROSION ON MN DK FRAME STA 947 LBL 44-54 REMOVED AND REPLACED WITH NEW T-CHORD AND REPAIR PARTS ON FLOOR BEAM STRUCTURE AT MAIN CABIN STA 947.5 LBL60-RBL60 IAW B737 SRM 53-70-51-2R-5 REPAIR 5. SEE FORM 44-0008 ATTACHED.

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