Symptoms:
Black box faulted out.
Reset black box and attempted to run car on inspection.
Black box immediately faults out again.
No matter direction provided by controller, elevator briefly attempts to run down then black box faults out.
Verified proper up and down inputs going to the black box before tripping.
Checked MG armature to ground. Megs 280K (normally not a problem for this vintage)

All indications from our end point to a failed black box. Had an informal phone conversation with an MCE friend and based on the information, he tends to concur. According to MCE tech bulletin 142-A dated 1/19/2015 Replacement Stock was depleted and parts for repair were not far behind.

Question is where can I get this repaired or buy a replacement?

See attached images.