Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 170; Flight Crew Total 1750; Flight Crew Type 780
Situational Awareness; Distraction
Conflict NMAC
Flight Crew Requested ATC Assistance / Clarification
Human Factors
On a Part 91 repositioning flight we were leveling off at 3;000 feet in contact with Charlotte Approach activating our IFR flight plan. Weather conditions were clear with unlimited ceiling and unlimited visibility despite our destination airport JQF reporting a broken layer at 500 feet. We were loading and activating the approach for our destination airport and had it in sight visually. When I looked up as Pilot Flying out the left-hand window I saw a flash and looked behind the wing to see a high wing aircraft a my 8 o'clock position about 25 feet below me. We did not see the airplane in front of us at any time and had overtaken it as it was flying in the same direction. We were well within the 30 mile mode C veil of Charlotte International yet that airplane did not show up on ADS-B. No evasive action was taken because we had already passed it by the time I saw it. We queried Charlotte Approach if they had a primary target in our vicinity and they said that they did not have any target.
Air taxi flight crew reported NMAC with another aircraft not on ADS-B while in climb.