# SDR VNAA2024122311102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2024
- Submitted: December 23, 2024
- Operation: Air carrier
- Aircraft: [N582NN](https://openairdocs.org/aircraft/N582NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15385
- Aircraft time: 20,455 hours, 18,235 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Pressure System
- Part number: GG6709800111
- Part serial: 01014
- Condition: Unserviceable
- Location: 200
- Part time: 20,456 hours, 18,236 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2024122311102

## Discrepancy

CABIN ALTITUDE WARNING MESSAGE AT 24000FT / REMOVED AND REPLACED BOTH CABIN PRESSURE CONTROLLERS IAW CRJ 900 AMM 21-31-04-000/400-801. REMOVED AND REPLACED  CABIN PRESSURE CONTROL PANEL IAW CRJ 900 AMM 21-33-01-000/401-801. OPS TEST GOOD. PERFORMED OPS TEST OF OUTFLOW VALVE IAW CRJ 900 AMM 21-32-01-720-801, VALVE OPENED AND CLOSED .OPS CHECK GOOD. PERFORMED OPS TEST OF SAFETY VALVE IAW CRJ 900 AMM 21-32-03-720-801 , VALVE OPENED AND CLOSED OPS CHECK GOOD REMOVED AND REPLACED JB10 PCB 1 IAW CRJ 900 AMM 24ˆ’05ˆ’03ˆ’000/400ˆ’801. PERFORMED OPS CHECKS IAW CRJ 900 AMM 24ˆ’05ˆ’03ˆ’710ˆ’801-A04 EXCEPT FOR 4A5 AND 4A15. REMOVED AND INSTALLED JB11 PCB 2 IAW CRJ 900 AMM 24ˆ’06ˆ’05ˆ’000/400ˆ’801. PERFORMED OPS CHECKS OF JB10 PCB 1 AND JB11 PCB2 IAW AMM 24-06-05-710-801 AND AMM 24-05-03-710-801. OPS CHECK GOOD.

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