All aircraft have red and green steady Nav lights on either wing tip Green is left Red is Right. The flashing Red was more than likely the anti Collision light this is usually Red when on the ground and for take off but switched to a clear white strobe whilst Flying. The red is so it does not blind ground crew and other aircraft whilst on the ground..
Are you sure that's the right way round? I only wonder as ships have the red on theleft (port) and green on the right (starboard). I'd expect aircraft to be the same.![]()