What was found
PHX - FLT 933 - CLIMBING OUT OF 4,500 FEET, GOT TAIL COMPT TEMP HI LITE. DID MEMORY ITEMS AND STARTED CHECK LIST. LIGHT WENT OUT AFTER BEING ON FOR 2-3 MINUTES. TEMPERATURE IN PHX AT DEPT, 42 DEGREES CELCIUS. CHECKED ALL PLUMBING AND EQUIPMENT IN AFT ACCESSORY COMPT. DEFERRED LT AIRCRAFT PACK PER MEL 21-01A. T-FUNC C/W, DEACTIVATED LT A/C PACK. (DELTA AIRLINES MTC). (X)