# SDR AALA202301049037

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2022
- Submitted: January 4, 2023
- Operation: Air carrier
- Aircraft: [N866NN](https://openairdocs.org/aircraft/N866NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 40584
- Aircraft time: 36,003 hours, 15,023 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Expansion Joint
- Part number: 143A524036
- Condition: Cracked
- Location: Bs 540 Lbl 3
- 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/AALA202301049037

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CRACK IN PASSENGER CABIN FLOOR PANEL LEFT HAND EXPANSION JOINT LOCATED AT BS 540, WL 208, AND LBL 3. REPLACED EXPANSION JOINT PER AARD 51-00-05-1.

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