As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MODE CONTROL PANEL "APP" SWITCHLIGHT DOES NOT ILLUMINATE GREEN WHEN SELECTED. BOTH CAPTAIN'S AND FO'S FLIGHT DIRECTORS SHOWED PROPER LOC AND GS GUIDANCE, AND BOTH FMA'S SHOWED "VOR LOC" AND "GS" ANNUNCIATIONS. GROUNDED - YES. A/C RELEASED PER MEL 22-18I. PERFORMED FIM 22-11 TASK 801. CHECKED GOOD. NO FAULT NOTED. OPS NORMAL. CLEARED MEL 22-18I.