# SDR AALA2019032540006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2019
- Submitted: March 25, 2019
- Operation: Air carrier
- Aircraft: [N924NN](https://openairdocs.org/aircraft/N924NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33486
- Aircraft time: 19,090 hours, 7,756 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Expansion Joint
- Part number: 143A524035
- Condition: Cracked
- Location: Bs 540-541
- 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/AALA2019032540006

## Discrepancy

CABIN FLOOR EXPANSION JOINT CRACKED BETWEEN BS 540 AND 541, BETWEEN LBL 2 AND LBL 23. REPLACED THE EXPANSION JOINT IAW RD 51-00-05.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.
