# SDR SIMA20260729001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2026
- Submitted: September 9, 2026
- Operation: Air carrier
- Aircraft: [N212NN](https://openairdocs.org/aircraft/N212NN), 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: 17000504
- Aircraft time: 28,307 hours, 18,940 cycles
- System (JASC): [5322 · Fuselage Internal Mounting Structure](https://openairdocs.org/jasc/5322)
- Part: Shear Tie
- Part number: 17067831002
- 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/SIMA20260729001

## Discrepancy

LEVEL 2 CORROSION CORROSION AT FWD CARGO FLOOR STRUCTURE  FR 26, STR 28L-28R. (MAJOR REPAIR) BLENDED ON FWD CARGO FLOOR  SHEAR CLIP AT FR 26, STR 28L-28R PER SRM 51-10-03. BLENDED AREA MEASURES L=2.8" W=1.0" D=.007". ORIGINAL MATERIAL THICKNESS IS .050" PER DWGS 170-67831-001. MAX MATERIAL REMOVED WAS .007", MATERIAL REMAINING IS .043" AND IS FOUND TO BE OUT OF LIMITS PER SRM 51-75-16. DRILLED & LOCATED 2 EA FWD CARGO FLOOR STRUCTURE SHEAR CLIPS ON FR 26, STR 28L  AND STR 28R IAW 51-40-02, 51-23-04. LOCATED, DRILLED, AND TREATED PER SRM 51-40-02 & SRM 51-23-04. APPLIED TOPCOAT PER SRM 51-23-06, ETN-EJ-51-015, AND ET N-EJ-51-025. R & R 2 EA "SHEAR CLIPS" AT FWD CARGO FR 26 BETWEEN STR 28L-28R PER SRM 51-40-08.

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