# SDR SIMA20251206002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2025
- Submitted: December 8, 2025
- Operation: Air carrier
- Aircraft: [N257NN](https://openairdocs.org/aircraft/N257NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000674
- Aircraft time: 22,024 hours, 14,737 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 17065669004
- 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/SIMA20251206002

## Discrepancy

SSI 53-23-005-001 CORROSION ON RH FLOOR BEAM AT FR 86, Y= +10.748". (MAJOR REPAIR) (LEVEL 2 CORROSION). BLENDED CORRODED AREA ON RH FLOOR BEAM AT FR 86, Y= +10.748" PER EMB-175 SRM 51-10-03. BLENDED AREA MEASURES (L=- 1.2?, W=.5?, H= .065?) AND IS FOUND TO BE OUT OF LIMITS PER EMB-175 SRM 53-23-10/AD02. LOCATED, DRILLED AND DEBURED NEW BEAM PN 170-65669-004, IAW E-175 SRM 51-40-02. APPLIED TOPCOAT TO FASTENERS IAW E 175 - SRM 51-23-06. REMOVED AND REPLACED RH FLOOR BEAM FROM FRS86-89 Y+10" PER EMB-175 SRM 51-40-08. LEVEL 2 CORROSION

---
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.