Hijacking At Karachi, Pakistan
The incident began as passengers boarded the Frankfurt-bound aircraft in Karachi. A subsequent FBI investigation revealed that the hijack occurred despite the presence of armed agents near the aircraft. The four hijackers were dressed as Karachi airport security guards and were armed with assault rifles, pistols, grenades, and plastic explosive belts. At about 06:00 a.m. local time, the hijackers drove a van that had been modified to look like an airport security vehicle through a security checkpoint up to one of the boarding stairways to Pan Am Flight 73.
The hijackers stormed up the stairways into the plane, fired shots from an automatic weapon, and seized control of the aircraft. Flight attendants were able to alert the cockpit crew using intercom, allowing the pilot, co-pilot and flight engineer to escape through an overhead hatch in the cockpit, effectively grounding the aircraft.
Read more about this topic: Pan Am Flight 73