# SDR AALA2020041399003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2020
- Submitted: April 13, 2020
- Operation: Air carrier
- Aircraft: [N990AN](https://openairdocs.org/aircraft/N990AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29563
- Aircraft time: 33,785 hours, 13,506 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Expansion Joint
- Part number: 143A524036
- Condition: Cracked
- Location: Fuselage
- 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/AALA2020041399003

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CRACKED EXPANSION JOINT AT BS 540 BETWEEN BL 0 AND RBL 20. REPLACED EXPANSION JOINT PER AARD 51-00-05-1.

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