# SDR SWIA2021070959397

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2021
- Submitted: July 9, 2021
- Operation: Air carrier
- Aircraft: [N899SK](https://openairdocs.org/aircraft/N899SK), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15112
- Aircraft time: 28,886 hours, 22,195 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Panel
- Condition: Corroded
- Location: Bs 379-394
- 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/SWIA2021070959397

## Discrepancy

CORROSION NOTED ON ACFT EXTERNAL STRUCTURE AROUND FWD LAV SERVICING POINT.     (C-CHECK RO 7/7/2021)    REMOVED CORROSION ON DIAPHRAGM AT STGR21R BETWEEN FS379-FS394, CHANNEL ON STGR 23R, AND LAV WASTE CLOSING PLATE BETWEEN STGR21R TO STGR 23R REF CRJ900 SRM 51-21-06-001-001-A01. AREAS FOUND TO BE OUT OF LIMITS. RECEIVED AND COMPLIED WITH ALL STEPS OF REO 690-53-21-1395 REV-A, DATED 2021-07-03. DIAPHRAGM AT STGR 21R OUT OF LIMITS. REMOVED AND INSTALLED NEW DIAPHRAGM AT STGR21R FS379-FS394 REF CRJ900 SRM 51-42-06-001-001-A01 AND DWG SH670-32280 REV-H. PRESSURE CHECK GOOD. OPS TEST GOOD. COMPLIED WITH TASK CARD 51-900-1002-SKY.

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