# SDR C77A2020022700033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2019
- Submitted: February 27, 2020
- Operation: Air carrier
- Aircraft: N621CZ
- 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: 17000218
- Aircraft time: 32,152 hours, 19,888 cycles
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Slat Track
- Part number: 17036806406
- Condition: Gouged
- Location: Rt Wing
- 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/C77A2020022700033

## Discrepancy

DURING BASIC CHECK AT EAMS, GOUGE DAMAGE WAS DISCOVERED DURING INSPECTION ON THE FLANGE OF THE P/N 170-36806-406 RH WING SLAT TRACK 6. THE WIDTH REDUCTION EXCEEDS THE ALLOWABLE LIMITS OF SRM PART II 57-47-00/AD01. REFERENCE ETD2019-170-162462 FIGURE 1 FOR DAMAGE LOCATION AND DETAILS. EAMS REQUESTED AND RECEIVED TEMPORARY RELIEF IN THE FORM OF ETD2019-170-162462, WHICH PROVIDES INSTRUCTIONS TO ACCOMPLISH A BLEND-OUT IN THE AFFECTED AREAS AND RESTORE SURFACE LUBRICATION AS A TEMPORARY REPAIR FOR 7500 FC PROVIDED THE DAMAGE IS INSPECTED AND MEASURED EVERY 600 FC. COMPASS ENGINEERING HAS CLASSIFIED THIS REPAIR AS A MINOR REPAIR.W.O.#2806553 AND W.O.#2806539

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