# SDR REXA2024123001620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2024
- Submitted: December 30, 2024
- Operation: Air carrier
- Aircraft: [N331PQ](https://openairdocs.org/aircraft/N331PQ), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15331
- Aircraft time: 22,823 hours, 17,473 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: CC670340951SB
- 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/REXA2024123001620

## Discrepancy

"FS280 CROSSBEAM J ANGLE IS CORRDED. BLENDED CORROSION IAW CRJ900 SRM 51-21-06-001-001-A01 MECHANICALLY MEASURED USING DEPTH GAUGE CID WVACT204440 CAL DUE 12/31/25 FOUND .012"" MATERIAL LOSS, OT .063"", 20% MATERIAL LOSS FOUND TO BE OUT OF LIMITS IAW CRJ900 SRM 53-00-00-101-001-A01 REQUIRES REPLACEMENT CORRECTIVE ACTION: PARTIALLY INSTALLED FS 280 J ANGLE IAW CRJ 900 SRM 51-42-21-001-001-A01. CORRECTIVE ACTION: INSTALLED REMAINING FASTENERS ON J ANGLE AT FS 280 IAW CRJ 900 SRM 51-42-06-001-001-A01. CORRECTIVE ACTION: INSTALLED SAME SERVICEABLE MAINTENANCE LIGHT AT FS 280 BL 0 IAW CRJ 900 SRM 51-42-06-001-001-A01. CORRECTIVE ACTION: LOCATED AND DRILLED SERVICEABLE J ANGLE (P/N: SCC670-34095-1SB) IAW CRJ 900 SRM 51-40-11-001-001-A01."

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