Pakistan International Airlines Flight 661, operated by an ATR-42-500, was a domestic passenger flight scheduled to fly from Chitral to Islamabad. On the fateful day, it took off carrying 47 individuals, including passengers and crew. Shortly before reaching Havelian, the aircraft encountered severe issues, which were determined to be primarily due to engine failure. Eyewitnesses reported seeing the plane struggling in the sky before it rapidly descended and crashed into a mountainous area near Havelian, Khyber Pakhtunkhwa province.

The aftermath of the crash prompted an immediate mobilization of rescue teams. Unfortunately, upon reaching the crash site, it was confirmed that there were no survivors. The government, along with aviation authorities, began a thorough investigation to ascertain the cause of the crash. Preliminary reports suggested that pilot error and mechanical failure might have played critical roles. The incident raised significant concerns regarding the maintenance and safety standards of Pakistan's commercial aviation sector.

This tragic event caught the attention of national and international media, hastening discussions about aviation regulations in Pakistan. Several families of the victims sought accountability and improvements in aviation safety. The incident has since been a pivotal point of reference in discussing the safety protocols of the nation’s airlines, as well as the need for regulatory reforms in the aviation industry, highlighting the importance of up-to-date training and system checks for pilots and aircraft.