# SDR ASAA2012101993156

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2012
- Submitted: October 23, 2012
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 14,160 hours, 4,267 cycles
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Circuit Breaker
- Condition: Tripped
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012101993156

## Discrepancy

OPEN CIRCUIT BREAKER FOUND ON PREFLIGHT P6-4 (A) BLEED AIR VALVES LEFT.   RESET BREAKER REF AMM 20-60-01-860-801, BREAKER REMAINS CLOSED. NO DEFECTS NOTED.

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