# SDR SWIA202161247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2021
- Submitted: September 29, 2021
- Operation: Air carrier
- Aircraft: [N789SK](https://openairdocs.org/aircraft/N789SK), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10291
- Aircraft time: 31,339 hours, 19,189 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: None
- 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/SWIA202161247

## Discrepancy

*INTERCOSTAL BETWEEN FS349.00 & 364.00 & STGR27 & STGR26R HAS CORROSION. (MARKED)     (C-CHECK RO 9/27/2021)    - REMOVED CORROSION ON INTERCOSTAL P/N SH670-32075-4 BETWEEN FS 349.00 AND FS 364.00, STGR.27 AND STGR.26RH. CRJ-700 SRM 51-21-06-001-001-A01.   - ORIGINAL MATERIAL THICKNESS IS .080"  / REMAINING THICKNESS IS .076" / MATERIAL REMOVED IS .004" THERE IS NO DAMAGE ALLOWED IN AREA OF BLEND. REPLACE PART  IAW CRJ 700 SRM 53-21-23-001-003-A01 AND CRJ700 SRM 53-21-23-101-003-A01.   REMOVED AND INSTALLED  NEW INTERCOSTAL BETWEEN FS349.00-FS364.00 & STGR27-STGR26R REF CRJ700 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01. COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY

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