# SDR AALA202503212765

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2025
- Submitted: March 21, 2025
- Operation: Air carrier
- Aircraft: [N959AN](https://openairdocs.org/aircraft/N959AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30828
- Aircraft time: 67,206 hours, 28,829 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 654A00041073
- Condition: Corroded
- Location: Zone 200
- 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/AALA202503212765

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: MAIN CABIN FLOOR STRUCTURE HAS CORROSION FROM BS 310 TO 325, LBL 60 AT L1 DOOR AREA. REMOVED AND REPLACED MAIN CABIN L1 DOOR FLOOR STRUCTURE SILL CHORD.  PER B737 SRM 51-40-02.

---
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.