# SDR NACA2022051100001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2022
- Submitted: May 14, 2022
- Operation: Air carrier
- Aircraft: [N351CM](https://openairdocs.org/aircraft/N351CM), registered now
- Make and model: Boeing 767323
- Aircraft serial: 29431
- Aircraft time: 84,340 hours, 14,172 cycles
- System (JASC): [3600 · Pneumatic System](https://openairdocs.org/jasc/3600)
- Part: Controller
- Part number: 79275515
- Part serial: 691254
- Condition: Unknown
- Stage of operation: NR
- 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/NACA2022051100001

## Discrepancy

LEFT ENGINE PRV. PERFORMED AIR SUPPLY BITE CHECKS PER AMM 36-23-00. FOUND L ENG PRV AND L ENG PRVC FAULT CODE. REMOVED AND REPLACED LEFT ENGINE PRV PER AMM 36-11-8 OPS CHECK AND LEAK CHECK OKA. REMOVED AND REPLACED LEFT ENGINE PRC CONTROLLER PER AMM 36-11-19 OPS CHECK AND LEAK CHECK OKAY, AC REMAINS ETOPS 180. PRV PN# 802170-10 SN# 921174 OFF. NO TRAX TIME UNIT INFO FOR EITHER PART.

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