What happened
A charter flight departed from Chaklala aerodrome at 08:20 West Pakistan Standard Time, bound for Gilgit. Following the arrival at Gilgit at 10:14, the captain informed ground personnel and passengers that the return leg would be flown without passengers because of extremely poor weather conditions along the route.
The return journey began at 14:00 when AP-ACZ, an aircraft type (not specified in source, but registration provided), departed Gilgit. At 14:10, the flight was in radio contact with the Gilgit aerodrome. Shortly after, at 14:21, Chaklala transmitted the most recent meteorological observations to the crew, which they acknowledged receiving.
Communication ceased until 14:54, when ground stations and two nearby aircraft intercepted an SOS distress signal. The message indicated that AP-ACZ was trapped in severe weather near the Indus mouth. Although Chaklala aerodrome responded to the distress call, no further contact with the flight was established. The aircraft subsequently crashed into the peak of Lash Golath mountain at an altitude between 14,000 and 15,000 feet. There were 3 fatalities among the crew members, who were the only people on board.
Findings
Official investigations concluded that the accident was caused by pilot error occurring while the captain attempted to conduct a flight that exceeded his level of experience or capability.