# SDR C77A2019050800002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 2019
- Submitted: May 8, 2019
- Operation: Air carrier
- Aircraft: [N607CZ](https://openairdocs.org/aircraft/N607CZ), 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: 17000192
- Aircraft time: 31,132 hours, 18,718 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Beam
- Part number: 17066280001
- Condition: Corroded
- Location: Fuselage
- Part time: 31,132 hours, 18,718 cycles
- 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/C77A2019050800002

## Discrepancy

DURING HEAVY MAINTENANCE CORROSION WAS FOUND ON BEAM (P/N 170-66280-001) AT S-28R BETWEEN FRAME 80 (X = 21192) AND FRAME 81 (X = 21617).  THE CORROSION WAS BLENDED OUT RESULTING IN TWO BLEND OUTS.  THE FIRST BLEND OUT IS 2.9" L X 1.0" W, X .05" D AND THE SECOND BLEND OUT IS .9" L X .35" W X .11" D WHICH IS OUT OF LIMITS.  THE CORRODED BEAM WAS REMOVED AND REPLACED WITH A NEW BEAM PER EO E175-53MR-417.

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