What was found
FLT 2023 - ABQ-PHX - LEFT BLEED AIR TRIP. AFTER RESET RIGHT BLEED AIR TRIP AND AFTER RESET, LOWER AFT BODY OVERHEAT AND ANOTHER LEFT BLEED TRIP. NO RESET ATTEMPT. AIRCRAFT MADE AN UNEVENTFUL LANDING IN PHX. REPLACED A GROMMET ON LEFT SIDE AFT AIRSTAIR FIRE LOOP. GROUND RAN AIRCRAFT 35 MINUTES WITH BOTH PACKS ON AT DIFFERENCE TEMPERATURES SATISFACTORILY. NO BLEEDS TRIPS ON LEFT AND RIGHT SIDES. RAN AIRCRAFT 20 MINUTES AT 80 PERCENT N-1. DIFFERENT TEMPS. COULD NOT DUPLICATE BLEED TRIPS. AIRCRAFT RETURNED TO SERVICE. (M)