# SDR ASAA2023033042650

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2023
- Submitted: March 31, 2023
- Operation: Air carrier
- Aircraft: [N937AK](https://openairdocs.org/aircraft/N937AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44100
- Aircraft time: 3,209 hours, 953 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 632920682
- Part serial: 2920
- Condition: Damaged
- Location: #2 Engine
- Part time: 3,205 hours, 951 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023033042650

## Discrepancy

WHILE #2 ENG RUN FOUND, FOUND HP LOCKOUT BOLT DAMAGE. GROUNDED - YES. REMOVED AND REPLACED #2 HPSOV IAW B737-9 AMM 36-11-07 AND PERFORMED PNEUMATIC LEAK TEST IAW AMM 36-11-07 NO LEAK NOTED.

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