As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT LIGHT BULB ON UPPER CONSOLE BURNED OUT. "OFF" LIGHTS WORK DURING LAMP TEST, BUT DO NOT ILLUMINATE WHEN SWITCH IS PLACED "OFF". CHECKED FUSE "F" FOR OPEN CIRCUIT. FOUND BOARD 7LP CAUSING ISSUE. LIGHT WORKS OFF PIN 44 REF ASM. FOUND THAT BOARD 5LP DOES NOT USE PIN 44. SWAPPED BOARDS AND LIGHT NOW WORKS NORMAL.