As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LEVEL CHANGE SELECTED AIRBORNE OR LIGHTS TEST SELECTED AIRBORNE AMBER ACTUATION LIGHT WITHIN THE BUTTON DOES NOT ILLUMINATE. COULD NOT DUPLICATE, ALL MODE CONT PANEL LIGHTS ILLUMINATE WITH LIGHTS TEST AND OPS CKS NORMAL IAW DFCS LIBRARY TEST NR 50.