What was found
LOST PRESSURIZATION INFLIGHT PACK 1&2 VALVE FAIL MESSAGE DISPLAYED BLEED 1 OVERTEMP EICAS MESSAGE DISPLAYED TEMPORARILY TROUBLESHOT PACK 1 VALVE, FOUND NUMEROUS CLAMPS LEAKING. TIGHTEN CLAMPS AS REQUIRED NO FURTHER LEAKS REF. TROUBLESHOT BLEED 1 OVERTEMP - FOUND FAN AIR VALVE SCREEN FILTER DIRTY. REMOVED AND REPLACED FAN AIR FILTER OPS CHECK AND LEAK CHECK GOOD. PERFORMED ENGINE PNUEMATIC CHECK. OPS CHECK GOOD NO FURTHER DEFECTS NOTED. PACK 2 ON MEL- CLEARED MEL