# SDR DALA2022072105041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2022
- Submitted: July 21, 2022
- Operation: Air carrier
- Aircraft: [N844MH](https://openairdocs.org/aircraft/N844MH), registered now
- Make and model: Boeing 767
- Registry model: [Boeing 767](https://openairdocs.org/model/boeing-767) (OpenAirDocs)
- Aircraft serial: 29717
- Aircraft time: 82,545 hours, 14,104 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: None
- Condition: None
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2022072105041

## Discrepancy

AIRCRAFT 1820-DIV-AFTER T.O. LEFT ENGINE BLEED OFF EICAS MESSAGE ILLUMINATED. QRH APPLIED. PROBLEM DID NOT CLEAR. LEFT BLEED PRV STATUS MESSAGE DISPLAYED. CORRECTIVE ACTION: SWAPPED PRV AND HPSOV AND DEFERRED PER MEL 36-11-02. RTN SERVICEABLE PRV BACK TO HPSOV POSITION. REPLACED FAILED PRV. OPS CK GOOD.

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