Incident: Saudia B772 at Madinah and Karachi on Sep 9th 2017, sauna in flight

A Saudi Arabian Airlines Boeing 777-200, registration HZ-AKV performing flight SV-706 from Madinah (Saudi Arabia) to Karachi (Pakistan) carrying pilgrims returning from the Hajj, departed Madinah with a delay of about 3 hours, climbed to FL370 enroute ...