What was found
AT FLT 330 MACH .80, THE MCD LIGHT ANNUNCIATOR LIGHT ILLUMINATED, WENT OUT BRIEFLY CAME BACK ON. A/C WAS HOLDING PRESS GOOD. C/W DOOR ANNUNCIATOR, CKLIST AND DIVERTED TO DEN. AFTER DEPRESS LIGHT WENT OUT CARGO DOOR LOCK ANNUNCIATOR INOP. DEFER PER MEL 52-4A, CATEGORY A, CONTROL NR 1006012, EXP 10-8-95. CARGO DOOR WARNING SYS OPS CK OK PER MM 52-70-09. INBOUND CREW REPORTED NO PROBLEMS WITH DOOR WARNING LIGHT.