# SDR SIMA20190113002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2019
- Submitted: January 15, 2019
- Operation: Air carrier
- Aircraft: N845AE
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145685
- Aircraft time: 34,133 hours, 31,205 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20190113002

## Discrepancy

SUPLEMENTAL WE WERE CLIMBING THROUGH FL180, WHEN WE PERFORMED ANTI-ICE/PNEUMATIC TEST WE NOTICED CAB ALT WENT VERY RAPIDLY TO AMBER AROUND 6,000FT CAB/ALT AT THAT POINT WE STARTED THE EMERGENCY DESCENT AND DECLARE EMERGENCY, CABIN ALT WENT TO 11,8000FT WITH CABIN WARNING "RED" IN EICAS WHILE DESCENDING. C/A-DEFERRED AS PER MEL 21-19. AUTH# 010446DM-C M-PROCEDURES C/W. PERFORMED OPC OF PRESSURIZATION CONTROL SYS. IAW AMM 21-31-00-700-801-A & 21-31-00-700-801-A. OPC GOOD. NO DEFECTS NOTED. MEL RESTORED.

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