# SDR SIMA20251002004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2025
- Submitted: October 3, 2025
- Operation: Air carrier
- Aircraft: [N240NN](https://openairdocs.org/aircraft/N240NN), 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: 17000594
- Aircraft time: 22,900 hours, 15,258 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 17086181005
- 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/SIMA20251002004

## Discrepancy

PASSENGER FLOOR STRUCTURE PANEL SUPPORT HAS CORROSION IN (2) LOCATIONS, 1 AT FR 89 +2? AND Y= +34? AND 1 AT FR 90 AND Y= +33?. LEVEL 2 CORROSION BLENDED CORROSION AT FR89-FR90 FLOOR STRUCTURE SUPPORT 2 EA LOCATIONS IAW EMB 175 SRM 51-10-03. MAX DEPTH OF BLENDS IS .004" AND IS OUT OF LIMITS PER EMB 175 SRM 51-75-16. REMOVED PASSENGER FLOOR STRUCTURE PANEL AT FR 89 +2" AND Y= +34" AND 1 AT FR 90 IAW EMB-- 175 SRM 51-40-08. ORDERED AND RECEIVED NEW PANEL SUPPORT (P/N-170-86181-005), LOCATED, DRILLED, DEBURRED, AND TREATED HOLES IAW EMB-175 SRM 51-40-02 SRM 51-23-04. RESTORED FINISH TO FASTENER HEADS IAW EMB-175 SRM 51-23-06. REMOVED AND REPLACED PASSENGER FLOOR STRUCTURE PANEL SUPPORT (P/N-170-86181-005) AT FR 89 +2" AND Y= +34" AND 1 AT FR 90 IAW EMB-175 SRM 51-40-08 LEVEL 2 CORROSION

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