# SDR ASAA2018122647551

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2018
- Submitted: December 27, 2018
- Operation: Air carrier
- Aircraft: [N534AS](https://openairdocs.org/aircraft/N534AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35202
- Aircraft time: 31,397 hours, 9,128 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Display
- Condition: Malfunctioned
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018122647551

## Discrepancy

BOTH CA & FO FD ANN ILLUMINATED. GROUNDED - YES. VERIFIED NOTED ANN ILLUMINATION. PERFORMED DFCS BITE PER B737-800 FIM 22-11 TASK 801. CHANNEL A NOT AVAILABLE FOR BITE. VERIFIED ALL CIRCUIT BREAKERS IN ON FCC A ON P18-1. POWERED DOWN A/C, REPOWERED. PERFORMED BITE AGAIN ON DFCS PER FIM 22-11 TASK 801. ALL CHANNELS AVAILABLE. NO FAULTS FOUND ON F/D PER STEP 6, CA & FO ANN NO LONGER ILLUMINATED ON DISPLAYS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.