# SDR DXTA2019121983222

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2019
- Submitted: December 19, 2019
- Operation: Air carrier
- Aircraft: [N336QS](https://openairdocs.org/aircraft/N336QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500201
- Aircraft time: 4,784 hours, 4,784 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning Message
- Condition: False Indication
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2019121983222

## Discrepancy

FOLLOWING CAS MSGS ILLUMINATED IN FLIGHT: SWPS FAULT AMS CTRL FAIL AP FAIL YD FAIL GSD2 FAIL SWPS ICE SPEED HSDB FAULT//SIGNOFF// PERFORMED GSD 2 OPERATIONAL CHECK AS PER AMM MPP 31-41-01- 710-801-A AND PERFORM FIM 31-42-00-810-812-A - FAILURE OF THE HSDB BETWEEN DATE CONCENTRATOR UNIT 1 AND DATA CONCENTRATOR UNIT 2. ALL TROUBLESHOOTING POINTED TO NO FAULT OR DISCREPANCIES AND THAT THE FAULT SIGN OFF: WAS TRANSITORY PER THE FAULT ISOLATION MANUAL. CALLED MCC WITH FINDINGSAND EMAILED EMBRAER TECH SUPPORT. PER EMBRAER TECH SUPPORT, PROCEED WITH ADD1T1ONAL TROUBLESHOOTING PER FAULT ISOLATION MANUAL 31-42-00-810-814-A. NO DISCREPANCIES OR FAULTS NOTED. PER EMBRAER TECH SUPPORT, RETURN THE AIRCRAFT TO SERVICE.

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