# SDR CALA2026042815771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2026
- Submitted: April 28, 2026
- Operation: Air carrier
- Aircraft: [N73270](https://openairdocs.org/aircraft/N73270), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31632
- Aircraft time: 75,425 hours, 26,578 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A55068
- 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/CALA2026042815771

## Discrepancy

AFT WET AREA FLOORBEAM UPPER TEE UPPER SURFACE STA 986.5 WITH CORROSION SPOTS LBL 26 - 44. REF NR 100024966 AT AFT WET AREA FLOORBEAM STA 986.5" FROM LBL 50" TO RBL 50". ACCOMPLISHED REPAIR OF THE UPPER TEE  SECTION OF THE FLOORBEAM STA 986.5" FROM LBL 50" TO RBL 50" IAW SRM 53-70-51-2R-4, ESR ESR 4-15092- WI-P2. & COMPLIANCE WITH THE REQUIREMENTS OF ECRA _ 5370-01231.

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