# SDR SIMA20260415004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2026
- Submitted: May 8, 2026
- Operation: Air carrier
- Aircraft: [N263NN](https://openairdocs.org/aircraft/N263NN), 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: 17000703
- Aircraft time: 21,830 hours, 14,668 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Beam
- Part number: 17065669003
- Condition: Corroded
- Location: Zone 100
- 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/SIMA20260415004

## Discrepancy

CORROSION ON AFT LH BEAM AT FR 87, Y=-10.748 (MAJOR REPAIR) (LEVEL 2 CORROSION) BLENDED CORRODED AREA ON AFT LH BEAM AT FR 87, Y=-10.748" PER EMB-175 SRM 51-10-03. BLENDED AREA MEASURES (L=1.8?, W=.9?, H= .022?). ORIGINAL MATERIAL IS .070? REMAINING MATERIAL IS .048? AND IS FOUND TO BE OUT OF ALLOWABLE LIMITS PER EMB-175 SRM 53-23-10/AD02. LOCATED, DRILLED, AND TREATED HOLES IN NEW AFT LH BEAM (PN:170-65669-003) PER EMB-175 SRM 51-40-02. ALODINE PER EMB-175 SRM 51-23-04. RESTORED FINISH TO FASTENERS ON AFT LH BEAM PER EMB-175 SRM 51-23-06 ETN-EJ-51-015. APPLIED CIC PER EMB-175 CPM 51-25-00. REMOVED AND REPLACED AFT LH BEAM PER EMB-175 SRM 51-40-08. LEVEL 2 CORROSION

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