# SDR AALA202002259031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2020
- Submitted: February 25, 2020
- Operation: Air carrier
- Aircraft: [N950NN](https://openairdocs.org/aircraft/N950NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31194
- Aircraft time: 18,952 hours, 7,233 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 143A524035
- Condition: Cracked
- Location: Bs 540
- 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/AALA202002259031

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CRACKED CABIN FLOOR BEAM EXPANSION JOINT AT BS 540 AND LBL 3. REPLACED EXPANSION JOINT PER AARD 51-00-05-1.

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