# SDR REXA2026052700746

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 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: Diaphragm
- Part number: CC670392058
- Condition: Cracked
- 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/REXA2026052700746

## Discrepancy

CRACK ON LH/RH DIAPHRAGM AT_ FWD AREA OF MLG W/W BTW FS= 797 TO FS= 807 LBL 35 AND RBL35. LH/RH DIAPHRAGMS AT_ FWD AREA OF MLG W/W BTW FS= 797 TO FS= 807 LBL 35 AND RBL35 WERE REPLACED PER CRJ-900 SRM 51-41-02-001-001-A01 AND PER CRJ-900 AMM 20-21-00-910-801-A01

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