# SDR NACA2022033100001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2022
- Submitted: April 5, 2022
- Operation: Air carrier
- Aircraft: N399CM
- Make and model: Boeing 767
- Registry model: [Boeing 767](https://openairdocs.org/model/boeing-767) (OpenAirDocs)
- Aircraft serial: 25451
- Aircraft time: 105,872 hours, 17,722 cycles
- System (JASC): [3600 · Pneumatic System](https://openairdocs.org/jasc/3600)
- Part: Valve
- Part number: 80217012
- Part serial: 910714
- Condition: Failed
- Stage of operation: CR
- 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/NACA2022033100001

## Discrepancy

AT FL 340 L ENG HPSOV EICAS MESSAGE ILLUMINATED. RAN QRH 2.22. REPLACED #1 ENG HPSOV PER AMM 36-11-07, BOTH OPS AND LEAK CHECKS OK. AC REMAINS ETOPS 180, ETOPS GROUND VERIFICATION COMPLETED. NO TIME INFO IN TRAX FOR UNIT.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.