# SDR ASAA2022112140884

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2022
- Submitted: November 23, 2022
- Operation: Air carrier
- Aircraft: [N442AS](https://openairdocs.org/aircraft/N442AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43293
- Aircraft time: 33,673 hours, 10,658 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074847
- Part serial: 11114
- Condition: Leaking
- Location: Nr 2  Eng
- Part time: 43,430 hours, 17,440 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022112140884

## Discrepancy

HIGH STAGE REGULATOR LEAK CHECK BAD. GROUNDED - YES. REMOVED AND REPLACED HIGH STAGE REGULATOR IAW B737-900 AMM 36-11-07. LEAK CHECK GOOD.

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