# SDR VNAA2025112111101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2025
- Submitted: November 21, 2025
- Operation: Air carrier
- Aircraft: [N509AE](https://openairdocs.org/aircraft/N509AE), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10078
- Aircraft time: 49,150 hours, 38,715 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Controller
- Part number: GG690950265
- Part serial: 01756
- Condition: Faulted
- Location: Zone 100
- Part time: 20,899 hours, 18,788 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2025112111101

## Discrepancy

LT PACK TEMP CAUTION AT 26,000 CLIMBING. RAN QRH AT 30,000. RT PACK TEMP CAUTION. BEGAN DESCENT AND RAN QRH. CABIN ALT CAUTION THEN WARNING. RAN QRC/QRH. CABIN O2 MASKS DEPLOYED IN FLIGHT. / REMOVED AND REPLACED LEFT ACSC IAW CRJ700 AMM 21-61-04-000/400-801-A01. OP CHECK GOOD. REMOVED AND REPLACED AIR CONDITIONING CONTROL PANEL IAW AMM 21-61-02-000/400-801-A02. OPS CHECKS GOOD.

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