# SDR CALA2014031800344

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2014
- Submitted: March 18, 2014
- Operation: Air carrier
- Aircraft: [N13720](https://openairdocs.org/aircraft/N13720), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28939
- Aircraft time: 50,275 hours, 16,082 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A55047
- Condition: Corroded
- Location: Bs 947
- 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/CALA2014031800344

## Discrepancy

CORROSION WAS FOUND ON LOWER SURFACE OF THE CARBIN FLOORBEAM UPPER TEE BS 947.5 LBL 52.5. BLENDED OUT CORROSION PER SRM51-10-02 GEN REV51.  INSTALLED REPAIR PARTS IAW SRM 53-70-51 R5 P201 REV 51.

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