Flight Crew Instrument; Flight Crew Commercial; Flight Crew Multiengine
Flight Crew Last 90 Days 20; Flight Crew Total 750; Flight Crew Type 350
Communication Breakdown; Other / Unknown; Distraction; Situational Awareness; Time Pressure; Workload
Conflict NMAC; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Environment - Non Weather Related; Human Factors
Aircraft Y nearly collided with me in my Aircraft X. I had all anti-collision lights on at dusk; this aircraft had no lights on until approximately 30 seconds after the near collision. The aircraft approached from the right at approximately a 30 degree intercept angle. I did not spot the aircraft until it was roughly 100 feet away at which point I took evasive action and dove my aircraft. Had evasive action not been taken we would have certainly collided. The other aircraft took no evasive action and did not seem to notice my aircraft until I had passed on the other side of them at which point they turned on their lights.
GA pilot reported an NMAC while in cruise flight requiring evasive action. The other aircraft did not have any lights on.