# SDR 141A202501220002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2025
- Submitted: January 14, 2026
- Operation: Air carrier
- Aircraft: [N853SA](https://openairdocs.org/aircraft/N853SA), registered now
- Make and model: Pilats PC1247E
- Aircraft serial: 1586
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Warning Message
- Condition: Illuminated
- Stage of operation: CR
- How discovered: V
- Nature of condition: S
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/141A202501220002

## Discrepancy

DURING FLIGHT AT 20000 FEET, ACS LOW INFLOW CAS MESSAGE, RAN QRH CHECKLIST ACS INHIBITED ABD SET BACK TO AUTO WITH NO CHANGE. DECENT TO 10000 FEET AND DECLARED EMERGENCY. ACS WAS INHIBITED AND SET BACK TO AUTO AGAIN WITH SUCESS. ATC WAS INFORMED AND APPROVED TO CONTINUE AT 10000 FEET

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