# SDR SWIA202163249

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2021
- Submitted: December 29, 2021
- Operation: Air carrier
- Aircraft: [N773SK](https://openairdocs.org/aircraft/N773SK), registered now
- Make and model: Cndair CL600*
- Aircraft serial: 10236
- Aircraft time: 42,683 hours, 27,165 cycles
- System (JASC): [5322 · Fuselage Internal Mounting Structure](https://openairdocs.org/jasc/5322)
- Part: None
- Part number: SH670318231
- Condition: Corroded
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA202163249

## Discrepancy

* BACK UP SILL AT STGR21L FS333-FS349 CORRODED     (C-CHECK RO 12/26/2021)     REMOVED AND INSTALLED NEW REPLACEMENT BACK UP SILL (P/N SH670-31823-1S) ONTO STGR21L BETWEEN FS333.00 AND FS349.00 USING ALL NEW HARDWARE. REF BOMBARDIER DWG# SH670-31810 REV Y AND CRJ700 SRM'S 51-42-06-001-001 A01, 51-42-21-001-001 A01. COMPLIED WITH SKYWEST TASKCARD 51-900-1002-SKY. LEAK CHECK GOOD

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