# SDR DALA2026033002054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2026
- Submitted: March 30, 2026
- Operation: Air carrier
- Aircraft: [N422DZ](https://openairdocs.org/aircraft/N422DZ), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 2031
- Aircraft time: 14,010 hours, 1,617 cycles
- Engine: Rroyce TRENT700072
- Engine time: 13,995 hours, 1,615 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 71069A020001
- Part serial: 7106900358
- Condition: Faulted
- Location: Zone 400
- Part time: 13,995 hours, 1,615 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026033002054

## Discrepancy

DIV - INTO BOS DUE TO INTERMITTENT DUAL BLEED ECAM FAULT.  REPLACED BMC NR 1, NR 2 PRV, AND NR 2 PRV SENSE LINE. PERFORMED HEALTH CHECK ON BOTH SYSTEMS. OPS CHECK GOOD. (8506464)

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