# SDR CALA2024013000259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2024
- Submitted: January 30, 2024
- Operation: Air carrier
- Aircraft: [N27724](https://openairdocs.org/aircraft/N27724), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28791
- Aircraft time: 76,986 hours, 27,869 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5506
- Condition: Corroded
- Location: Bs 986
- 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/CALA2024013000259

## Discrepancy

(B737-53-3-0737) CORROSION ON MAIN DECK FLOOR FRAME STA 986.5 TOP CHORD BOTH SURFACES AT AT APPROX RL 45 REMOVED AND REPAIRED FLOOR BEAM STA  986.5 RBL8 TO RBL 50 PER B737-700 SRM 53-70-51-2R-4 REPAIR 4. DATA WAS TRANSCRIBED FROM PAPER DOC AERSALE WO 4135 NR 37138

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