# SDR ASAA2015090612950

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 6, 2015
- Submitted: September 9, 2015
- Operation: Air carrier
- Aircraft: [N534AS](https://openairdocs.org/aircraft/N534AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35202
- Aircraft time: 18,666 hours, 5,469 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Regulator
- Part number: 1074926
- Part serial: 6283
- Condition: Failed
- Location: Bleed Air
- Part time: 48,082 hours, 19,928 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015090612950

## Discrepancy

BLEED AIR VALVES LT CIRCUIT BREAKER TRIPPED, P6-4, NR 7.  ACFT GROUNDED. GVI P6-4 CIRCUIT BREAKER PANEL NO FAULT FOUND RESET CIRCUIT BREAKER.  CIRCUIT BREAKER TRIPPED AGAIN.  DISCONNECT DP1102, CIRCUIT BREAKER STAYED IN.  SUSPECT M1180 ENG 1 BLEED AIR REGULATOR.  REPLACED NR 1 ENGINE. BLEED AIR REGULATOR, IAW MM 36-11-03.  ACCOMPLISHED INSTALLATION TEST IAW SUBTASK 36-11-03-860-004.  CIRCUIT BREAKER REMAINS IN.

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