# SDR SIMA201807121003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2018
- Submitted: July 12, 2018
- Operation: Air carrier
- Aircraft: [N902BC](https://openairdocs.org/aircraft/N902BC), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500887
- Aircraft time: 33,306 hours, 28,486 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Door Sill
- Part number: 14522178605
- Condition: Corroded
- Location: Fuselage
- 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/SIMA201807121003

## Discrepancy

FWD SERVICE DOOR CUT OUT STRUCTURE THRESHOLD LOWER HORIZONTAL BEAM HAS SPOTS OF CORROSION BETWEEN FRAMES 20 AND 22. BLENDED CORROSION ON LOWER SILL IAW SRM 51-10-03, DETERMINED TO BE OUT OF SRM LIMTS. REMOVED LOWER SILL IAW SRM 51-40-02. INSTALLED NEW LOWER SILL IAW SRM 51-40-02. PRIMED AND TOPCOATED FASTENERS AND APPLIED CIC IAW EMB CPM 51-20-05, 51-21-06 , ETN EM-51-091 AND CPM 51-61-00.

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