# SDR REXA2026052700739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2025
- Submitted: May 28, 2026
- Operation: Air carrier
- Aircraft: [N921XJ](https://openairdocs.org/aircraft/N921XJ), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15172
- Aircraft time: 38,778 hours, 27,736 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Fitting
- Part number: SH670318403
- Condition: Corroded
- Location: Zone 200
- 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/REXA2026052700739

## Discrepancy

CORROSION ON CLOSING FITTINGS AT PASSENGER FLOOR STRUCTURE OVER FS 314.00 - LBL 40.00 AND FS 342.00 - LBL 40.00. CORROSION ON CLOSING FITTINGS AT PASSENGER FLOOR STRUCTURE OVER FS 314.00 - LBL 40.00 AND FS 342.00 - LBL 40.00. WAS REMOVED PER CRJ-900 SRM 51-21-06-001-001-A01 AND WERE EVALUATED OUT LIMITS PER CRJ-900 SRM 53-21-23-101-001-A01 THEREFORE WERE REPLACED PER CRJ-900 SRM 51-42-21-001-001-A01 AND SRM 51-41-02-001-001-A01

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