What was found
LEFT AND RIGHT PACK OFF EICAS MESSAGE FOLLOWED BY CABIN DEPRESSURIZATION FOLLOWED BY CABIN AUTO INOP EICAS. FOUND LEFT BLEED SYSTEM AT FAULT REPLACED COMPONENTS REF LOGPAGE B104059, B104060, AND B104061 FOUND LEFT ENG HP VALVE SHAFT BEARING EXCESSIVE PLAY. REMOVED AND REPLACED LH ENG HP VALVE. PART NOT IN TRAX, NO HOURS OR CYCLES.