# SDR VNAA2023120811101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2023
- Submitted: December 8, 2023
- Operation: Air carrier
- Aircraft: [N539EA](https://openairdocs.org/aircraft/N539EA), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10318
- Aircraft time: 29,259 hours, 23,229 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: GG690950265
- Part serial: 00610
- Condition: Unserviceable
- Location: 100
- Part time: 23,790 hours, 22,191 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2023120811101

## Discrepancy

HAVING ISSUE WITH HEAT PRESSURIZATION DIFF INCREASING, DESENDING EMERGENCY DECLARED / REMOVED AND REPLACED LH ACSC IAW CRJ 700 AMM 21-61-04-000/400-801-A01. PERFORMED IN-BITE TEST OF ACSC IAW CRJ 700 AMM 21-61-04-740-801-A01. TEST PASSED. PERFORMED OPERATIONAL CHECK OF TEMPERATURE CONTROL SYSTEM IAW CRJ 700 AMM 21-60-00-710-801-A01. NO DEFECTS NOTED AT THIS TIME. PERFORMED PRESSURIZATION OF AIRCRAFT IAW CRJ 700 AMM 21-31-00-910-801-A01-PSA. NO DEFECTS NOTED AT THIS TIME.

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