What was found
ON TAKEOFF OUT OF ORF, HAD THE LOWER/AFT BODY OVERHEAT ILLUM. FOLLOWED PROCEDURES, LIGHT STAYED ILLUM. ISOLATED THE NR 1, NR 2, NR 3 ENG PNEUMATICS, LIGHT REMAINED ILLUM. OFF-LANDED IN CAE. FOUND RT OVERHEAT DET M365 SEC 48 SHORTED. REPLACED SAME, RAN ENGINES, OPERATION NORMAL.