What was found
INSP TYPE:E TOP DIVERSION - RT DUCT LIGHT ILLUMINATED EICAS MSG RT BLD DUCT LEAK DISPLAYED LIGHT EXTINGUISHED AFTER ENG BLEED AIR SUPPLY AND ISOLATION VALVES CLOSED. FIM 26-18-00, FIG 104, FOLLOWED NO FAULTS PRECAUTIONARY REPLACEMENT OF FOLLOWING ITEMS IAW AMM 26-18-1-4 ELEMENTS TS214, TS215, TS216.