# SDR CALA2026041915463

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2026
- Submitted: April 20, 2026
- Operation: Air carrier
- Aircraft: [N77296](https://openairdocs.org/aircraft/N77296), registered now
- Make and model: Boeing 737824
- Aircraft serial: 34002
- Aircraft time: 59,222 hours, 21,739 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5504
- 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/CALA2026041915463

## Discrepancy

AFT WET AREA POSSIBLE CORROSION ON FLOORBEAM UNDER HARD POINT STA 947 RBL 25.   PERFORMED REPAIR ON AFT WET AREA FLOOR BEAM BTW STA 947 AND RBL 25.THIS IS A CATEGORY "A" REPAIR. THE INSPECTIONS GIVEN IN THE MAINTENANCE PLANNING DATA ARE SUFFICIENT TO MAINTAIN DAMAGE TOLER ANCE OF THE INITIAL STRUCTURE WITH THIS REPAIR INSTALLED IAW SRM 53-70-51-2R-5 STEP 2A. ALL WORK ACCOMPLISHED IAW SRM 53-70-51-2R-5.

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