BA 476 + JP 550
10 Sep 1976 · Mid-Air & Ground Collisions1976 ZAGREB MID-AIR COLLISION
Hawker Siddeley Trident + Douglas DC-9 · British Airways + Inex-Adria Aviopromet · Image: Wikimedia Commons
Why it happened
Overwhelmed controller cleared both jets into each other
ATC sector overload
Procedural control
Radio watch
Aircraft
Hawker Siddeley Trident + Douglas DC-9
British Airways + Inex-Adria Aviopromet
Route
London–Heathrow (LHR), UK
→ Istanbul (IST), Türkiye
People
176 on board
176 fatalities
Date
10 Sep 1976
Category
Mid-Air & Ground Collisions
Two aircraft, one piece of sky.
THE STORY
An overloaded Zagreb controller cleared both jets through the same sky. The DC-9's wing sliced through the Trident's cockpit at 33,000 ft.