A PIA Pakistan International Airlines Airbus A320-200, registration AP-BLZ performing flight PK-325 from Islamabad to Quetta (Pakistan) with about 100 people on board, was accelerating for takeoff from Islamabad's runway 28L when the crew rejected takeoff at about 72 knots over ground. The aircraft slowed safely and returned to the apron.
The aircraft attempted a second takeoff from runway 28L about 16:42L (11:42Z) but rejected another time at about 94 knots over ground.
The flight was postponed to the next day, a replacement A320-200 registration AP-BLU reached Quetta with a delay of 24 hours.
The occurrence aircraft remained on the ground in Islamabad for about two hours after the second rejected takeoff, then departed for flight PK-319 to Karachi (Pakistan). The aircraft is still on the ground in Karachi about 19 hours after landing in Karachi.
The airline reported flight PK-325 was cancelled due to malfunctioning/misreading sensors in the aircraft computer systems. The passengers were taken to hotels over night, a rescheduled flight departed the following day.