What was found
AT 2335Z (APPROX 1:15 INTO THE FLIGHT), FL340, TAT -11, .838MACH, GOT BOTTLE DISCHARGE APU CAUTION WITH LIGHT APU BTL DSCG ON OVERHEAD AND BOTTLE APU ON STATUS PAGE. PERFORMED APU FIRE EXTINGUISHING BOTTLE PRESSURE SWITCH TEST PER ABOVE REF, TEST PASS, AND ALSO PERFORMED APU BOTTLE DISCHARGE AIMS INPUT MONITORING TEST PER ABOVE REF, TEST PASS. FAULT ISOLATION ON EICAS MESSAGE BOTTLE DISCH APU,COMPLIED WITH PER ABOVE REF ON PARAGRAPH C, PER FLIGHT CREW DEBRIEF, VERBALLY ADVICE THAT THE INDICATION APU DISCH LIGHT EXTINGUISHED SOMETIME BEFORE LANDING. NEED APU FIRE BOTTLE, CURRENTLY NO STOCK IN OAK. FACT 02JUN26 08:06 OAK AMM: 26-22-01-4 REMOVED AND REPLACED APU FIRE BOTTLE (OLD BOTTLE WAS NOT BLOWN), REF B777 26-22-01-4. OPS CHECK GOOD, NO DEFECTS NOTED.