PIA Flight 268 (1992) — Controlled flight into terrain near Kathmandu

Aircraft, route and circumstances

The flight was operated with a twin‑aisle passenger jet on a scheduled international route. Kathmandu's airport sits in a bowl of high terrain, and approaches require precise altitude management and strict adherence to published procedures. During the instrument approach the aircraft descended below the safe glide path and impacted a hillside while still under control, leaving no survivors.

Investigation and findings

Authorities conducted a formal investigation into the crash. Investigators determined the accident was a CFIT event: the aircraft unintentionally flew into terrain while under pilot control. Contributing factors identified by the inquiry included premature descent below minimum safe altitudes during the approach, breakdowns in cockpit monitoring and crew coordination, and difficulties posed by the demanding mountainous environment and available navigation information.

• Primary cause: descent below published safe altitudes on approach.
• Contributing issues: pilot decision‑making and procedural deviations.
• Environmental and operational factors: complex terrain and approach constraints.

Aftermath and safety impact

The crash prompted reviews of approach procedures, crew training, and navigational aids for operations into Kathmandu and similar airports. Airlines and regulators worldwide highlighted better terrain awareness, stricter adherence to approach minima, reinforced crew resource management, and wider fitment and use of terrain‑awareness warning systems as measures to reduce CFIT risk. Nepalese authorities also reviewed air traffic control procedures and charting for high‑altitude approaches.

Notable facts

PIA Flight 268 is frequently cited in aviation safety literature as an example of how demanding airport environments amplify the consequences of procedural lapses. Its legacy influenced both local changes in Nepalese aviation oversight and broader industry emphasis on procedures, technology and training designed to prevent controlled flight into terrain.