I was checking breakers again, removed panel cover (no power on) and checked continuity of breakers, all checked good. Powered up on shoreline and checked voltage on each breaker, all checked good. Turned power off to from shoreline and then did a pull check on all wiring (should have done this first), I found both hot wires (black) going to the 50 amp breakers (two breakers tied together) loose, they were so loose they pulled out with no effort (these are 6 guage wires), I reinserted them and tightened them down and also found a 20 amp breaker wire loose too (wash/dryer) I checked all wires and tightened all of them. Plugged in shoreline cable and checked Air Conditioners and washer/dryer, all worked. Thanks for all of the info and guidance on this issue. I appreciate the help.