# SDR UIEA2026040900180

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2026
- Submitted: April 13, 2026
- Operation: Air carrier
- Aircraft: [N485MC](https://openairdocs.org/aircraft/N485MC), registered now
- Make and model: Boeing 747-45EF
- Registry model: [Boeing 747-45EF](https://openairdocs.org/model/boeing-747-45ef) (OpenAirDocs)
- Aircraft serial: 30607
- Aircraft time: 113,190 hours, 19,962 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 80217011
- Part serial: 200511173
- Condition: Faulted
- 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/UIEA2026040900180

## Discrepancy

DIVERSION FOR BLEED #4 STATUS MESSAGE, #3 BLEED DEFFERED.  REPLACED BROKEN TERMINAL (EICAS BLEED 4) ON #4 HIGH PRESS BLEED VALVE #1 STUD IAW SWP 20-30-00.   R/R #3 ENG PRV IAW AMM 36-11-19. OPS AND LEAK CHECK PASSED,   PERFORMED HP ENG RUN PER 71-00-00. OPS CHECK OK, NO FAULTS. R/R PRV CONTROLLER PER AMM 36-11-20. LEAK CHECK PASSED,

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