B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Aircraft Equipment Problem Critical
Flight Crew Overcame Equipment Problem
Aircraft
Our aircraft was released for duty with the left pack inoperative. At FL350;our final cruise altitude; the right pack had an over temp and It shut down.  We put on our oxygen masks and went to the QRH. We were able to get the right pack up using STBY N and we continued to destination without incident. R PACK TEMP; followed by R PACK INOP.
B767 First Officer reports being dispatched with the left pack inoperative then having the right pack trip for an over temp at FL350. Masks are donned and the QRH is complied with; resulting in the pack being reset in STBY N.