# SDR ASAA2023032642588

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2023
- Submitted: March 27, 2023
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 52,914 hours, 15,568 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074847
- Part serial: 3824
- Condition: Leaking
- Location: #2 Engine
- Part time: 70,992 hours, 33,477 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/ASAA2023032642588

## Discrepancy

PER TC NG-36WC-00002-2 STEP L (REVERSE FLOW DIAPHRAGM LEAK CHECK), HIGH STAGE REGULATOR REQUIRES REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED HSR REF B737-800 AMM 36-11-07 OPS CHECK GOOD.

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