# SDR CALA2026042115550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2026
- Submitted: April 21, 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: 147A5506
- 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/CALA2026042115550

## Discrepancy

AFT WET AREA POSSIBLE CORROSION ON FLOORBEAM BS 986, LBL 50.  PERFORMED REPAIR ON AFT WET AREA FLOORBEAM BTW BS 986, LBL 50.   DAMAGE TOLERANCE OF THE INITIAL STRUCTURE WITH THIS REPAIR INSTALLED IAW SRM 53-70-51-2R-4 2A, STEP 2A.  . ALL WORK ACCOMPLISHED IAW SRM 53-70-51-2R-4 2A.

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