# SDR SWIA202157160

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2021
- Submitted: April 2, 2021
- Operation: Air carrier
- Aircraft: [N791SK](https://openairdocs.org/aircraft/N791SK), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10293
- Aircraft time: 30,322 hours, 18,778 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Condition: Corroded
- Location: Bs 310-333 S21l
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA202157160

## Discrepancy

MAIN AVIONICS BAY STR 21L BACK-UP SILL BETWEEN FS310.00 AND FS333.00 CORRODED   (C-CHECK RO 4/1/2021)    REPLACED STRG 21L BACK UP SILL FROM FS310 TO FS333. REF CRJ700 SRM 51-42-06-001-001-A01 AND REF CRJ700 SRM 51-42-21-001-001-A01 AND DWG SH670-31810 REV AE. COMPLIED WITH TASK CARD 51-900-1002-SKY. NO LEAKS NOTED.

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