Any Unknown or Unlisted Aircraft Manufacturer
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 7
Communication Breakdown
Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance
Human Factors; Procedure
I descended Aircraft X to 6;000; they read back 6;000. I gave another aircraft instructions and noticed Aircraft X was at 4;000 in a 4;500 MVA.
EUG TRACON Controller reported an aircraft descending below the Minimum Vectoring Altitude.