# SDR ASAA2023010441411

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2023
- Submitted: January 5, 2023
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 32,903 hours, 10,299 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074847
- Part serial: 9907
- Condition: Inoperative
- Location: #2 Engine
- Part time: 51,719 hours, 15,453 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023010441411

## Discrepancy

#2 ENG. HIGH STAGE REGULATOR INOP. GROUNDED - YES. REPLACED #2 ENG. HIGH STAGE REGULATOR. OPS/LEAK CHECK OK. REF. B737-900 AMM 36-11-07-400-801.

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