# SDR ASAA1159671

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2011
- Submitted: May 24, 2011
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 11,906 hours, 3,766 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074847
- Part serial: 10252
- Condition: Failed
- Location: Bleed Air Sys
- Part time: 11,909 hours, 3,767 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1159671

## Discrepancy

NR 1 ENGINE HIGH STAGE REGULATOR FAILED HEALTH CHECK.  REPLACED NR 1 ENG HIGH STAGE REG IAW B737NG AMM 36 11 07 LEAK CHECK GOOD INSTALLATION TEST GOOD.  ASA 8130 3 T 20110427 0404.

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