# SDR EE4Y2026042424372

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2026
- Submitted: April 24, 2026
- Operation: General aviation
- Filed by: [Cooperativa Autogestionaria de Servicios Aeroindus, repair station EE4Y151M](https://openairdocs.org/faa-repair-station/EE4Y151M/cooperativa-autogestionaria-de-servicios-aeroindus.md) (OpenAirDocs)
- Aircraft: [N309JB](https://openairdocs.org/aircraft/N309JB), registered now
- Make and model: Emb ERJ 190-100 IGW
- Registry model: [EMB ERJ 190-100 IGW](https://openairdocs.org/model/embraer-erj-190-100-igw) (OpenAirDocs)
- Aircraft serial: 289
- Aircraft time: 34,142 hours, 22,496 cycles
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Pinion
- Part number: 19003175403
- Condition: Corroded
- Location: Zone 500 Slat
- 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/EE4Y2026042424372

## Discrepancy

DURING THE ACCOMPLISHMENT OF INSPECTION TASK CARD 57-40-006-0547, WE FOUND SLAT PINION #9 (LH AND RH, SLAT PINION #9 P/N: 190-03175-403) PRESENTING PITTING CORROSION. THE CONDITION IS LIMITED TO THE PINION TEETH, WITH NO MATERIAL LOSS OBSERVED. WE SEARCHED FOR TECHNICAL REFERENCES REGARDING CORROSION REMOVAL FOR THIS COMPONENT BUT FOUND NONE. THEREFORE, WE PROPOSE PERFORMING CORROSION REMOVAL IN ACCORDANCE WITH THE GUIDELINES OF REF. AW_SON_EMB_00284_20241. THIS CONDITION REPORTED WAS REPAIRED IAW ETD2026-190-004639 DTD MAR 16 2026 AND DOCUMENTED UNDER COOPESA EO COO-EO-2026-24129-R00. JOB A1Q349 ITEM 5-29 AND 6-21.

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