B757-200
Flight Crew Air Transport Pilot (ATP)
Time Pressure; Training / Qualification
Aircraft Equipment Problem Critical
Flight Crew FLC complied w / Automation / Advisory
Aircraft; Procedure
B757 single pack operation (RIGHT ENG PRSOV; MEL 36-01). Shortly after Top of Descent (TOD); descending out of FL350; loss of remaining pack; Left 'PACK INOP' followed by 'PACK OFF.' Temporary loss of cabin pressurization followed QRH procedure landed safely.
A B757 with the Left PACK MEL'ed had a temporary loss of cabin pressurization as the descent out of FL350 commenced after the EICAS alerted RIGHT PACK INOP and RIGHT PACK OFF and while the QRH procedure was completed.