# SDR SWIA2020040149806

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2020
- Submitted: April 1, 2020
- Operation: Air carrier
- Aircraft: [N744SK](https://openairdocs.org/aircraft/N744SK), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10200
- Aircraft time: 41,658 hours, 26,393 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Door Sill
- 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/SWIA2020040149806

## Discrepancy

* THE BACK UP SILL BETWEEN FS319.00 AND FS333.00 AT STRINGER 21L HAS MULTIPLE  LOCATIONS OF CORROSION. (MARKED)         (C-CHECK)   RO:3/29/2020 INSTALLED NEW BACK UP SILL (P/N SH670-31822-1) BETWEEN FS319.00 AND FS333.00 AT STGR 21L PER BOMBARDIER DWG AND CRJ700 SRM. LEAK CHECK GOOD COMPLIED WITH SKYWEST TASK CARD.

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