# SDR SWIA2025081675124

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2025
- Submitted: February 3, 2026
- Operation: Air carrier
- Aircraft: [N821SK](https://openairdocs.org/aircraft/N821SK), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15109
- Aircraft time: 38,465 hours, 24,998 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Condition: Corroded
- Location: Zone 100
- 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/SWIA2025081675124

## Discrepancy

CORROSION NOTED ON STRG 19R BETWEEN FS437-FS453 (MARKED)  (C-CHECK RO 02/01/2026)STRG 19R BETWEEN FS437-FS453 HAS A PREVIOUS REPAIR AND IS IN A NO DAMAGE ALLOWED AREA THEREFORE FOUND TO BE OUT OF LIMITS REPLACE PART REF CRJ-900 SRM 53-21-03-101-007-A04REMOVED AND REPLACED STR19R FROM FS349 - FS469 WITH NEW P/N SH670-31103-4 REF CRJ-900 SRM 51-42-06-001-001-A01 AND DWG SH670-31070 REV JPERFORMED PRESSURIZATION OF STRG 19R BETWEEN FS437-FS453 REF CRJ900 AMM 21-31-00-910-801-A02. NO LEAKS NOTED AT THIS TIMECOMPLIED WITH 51-900-1002-SKY SEE CONTINUE CARD FOR DETAILS

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