# SDR CALA2026060116674

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2026
- Submitted: June 1, 2026
- Operation: Air carrier
- Aircraft: [N45440](https://openairdocs.org/aircraft/N45440), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33535
- Aircraft time: 52,790 hours, 18,878 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A550616
- Condition: Corroded
- Location: Zone 200
- 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/CALA2026060116674

## Discrepancy

B737-MP-2000-53-390-00  AFT WET AREA UPPER 'T' CHORD STATION 986 RH SIDE IB OF R2 DOOR HAS SURFACE CORROSION.    REPAIRED FLOORBEAM UPPER FLANGE IAW B737 SRM 53-70-51-2R REPAIR #6.   AAR GSO MECH V901400 ESFR CREATED REPAIRED FLOORBEAM UPPER FLANGE IAW B737 SRM 53-70-51-2R REPAIR 6.

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