# SDR CALA2023052201604

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2023
- Submitted: May 22, 2023
- Operation: Air carrier
- Aircraft: [N16701](https://openairdocs.org/aircraft/N16701), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28762
- Aircraft time: 77,924 hours, 27,822 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A55063
- Condition: Corroded
- Location: S986.5/Rbl11-44
- 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/CALA2023052201604

## Discrepancy

CABIN FLOOR BEAM 986.5 UPPER FLANGE HAS SEVERE CORROSION AT RT B/L11 TO 44 REF AAR N/R 9672177 REMVOED AND REPLACED AT CABIN FLOOR BEAM STA 986.5 EXISTING REPAIR T-CHORD FROM LBL 8 TO RBL 50 PER REF B737 SRM 53-70-51-2R-4 REPAIR 4.

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