# SDR ASAA2017102522311

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2017
- Submitted: October 26, 2017
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 40,557 hours, 12,092 cycles
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Circuit Breaker
- Part number: BACC18AD5
- Condition: Tripped
- Location: Flight Deck
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017102522311

## Discrepancy

SPEED TRIM FAIL LIGHT ILLUMINATED ON RECALL.  ACFT GROUNDED.  FOUND MCP DC1 CIRCUIT BREAKER TRIPPED.  PERFORMED A CIRCUIT BREAKER RESET IAW AMM 20-60-01.  SPEED TRIM FAIL LIGHT REMAINED EXTINGUISHED ON RECALL. PERFORMED DFCS BITE, TEST PASSED IAW FIM 22-11, TASK 801. NO FURTHER DEFECTS NOTED AT THIS TIME.

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