# SDR ASAA2022021637465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2022
- Submitted: February 18, 2022
- Operation: Air carrier
- Aircraft: [N495AS](https://openairdocs.org/aircraft/N495AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41728
- Aircraft time: 21,992 hours, 6,915 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022021637465

## Discrepancy

DURING PRE-FLIGHT, FOUND MCP DC1 CIRCUIT BREAKER OPEN, PANEL P18-1. GROUNDED - YES. PERFORM GVI OF C/B NO DEFECTS NOTED, RESET C/B PER B737-900 AMM 20-60-01 OPS CHECK NORMAL.

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