What was found
ABORTED TAKEOFF DUE TO AFT CARGO LIGHT ILLUMINATED. INSPECTED AFT CARGO DOOR, OPENED AND RE-SECURED DOOR, LIGHT WENT OUT. INSPECTED ALL OTHER DOORS AND PRESSURIZED AIRCRAFT ON GROUND, NO LIGHTS. REAR CARGO DOOR LIGHT DEFERRED PER MEL 52-3 CAT C. MEASURED AFT CARGO COMPARTMENT DOOR SENSOR GAP AT .228, MAX ALLOWABLE IS .220. SHIMMED AFT CARGO COMPARTMENT DOOR SENSOR TO .148 PER B737-200 AMM SEC. 52-71-00 PG 501. OPS CHECK GOOD.