# SDR CALA2025030402578

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2025
- Submitted: March 5, 2025
- Operation: Air carrier
- Aircraft: [N77431](https://openairdocs.org/aircraft/N77431), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 32833
- Aircraft time: 51,647 hours, 18,333 cycles
- System (JASC): [5345 · Fuselage, Equipment Attach Fittings](https://openairdocs.org/jasc/5345)
- Part: Fitting
- Condition: Damaged
- 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/CALA2025030402578

## Discrepancy

AFTER REMOVAL OF THE DAMAGE MACHINED INTERCOSTAL AND FITTING FOUND DAMAGE CORROSION UNDER HARD POINT GALLEY FITTING REQUIRE REPAIR FLOOR BEAM STA 947.5 RBL 46 (REF: AAR NR 1000031077) ESFR COMPLETED PERFORMED REPAIR AT FLOOR BEAM STA 947.5 RBL 46 IAW B737-900ER S RM 53-70-2R-5 SRM 51-00-0G SRM 51-10-02 SRM 51-20-01 SRM 51-40-0 5 SRM 51-40-0G SOPM 20-20-02 SOPM 20-10-03 SOPM 20-41-02.

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