Biman Bangladesh Airlines Flight 426

Biman Bangladesh Airlines Flight 426 was a scheduled domestic passenger flight between Patenga Airport, Chittagong (now Shah Amanat International Airport) and Zia International Airport, Dhaka. On 5 August 1984, the aircraft operating the flight, a Biman Bangladesh Airlines Fokker F27-600 crashed into a marsh near Zia International Airport (now Hazrat Shahjalal International Airport) in Dhaka, Bangladesh while landing in poor weather. All 49 occupants (45 passengers, 4 crews) had died on crash, making it the second deadliest aviation accident involving a Bangladeshi airliner behind US-Bangla Airlines Flight 211 and the deadliest to happen inside Bangladeshi territory to date.

Accident

The weather conditions in Dhaka were poor on the day of the accident; there was turbulence and heavy rain made visibility very poor. Amid these conditions, the crew first attempted a VOR approach to Zia International Airport's runway 32. As the runway was not spotted by either crew member, a missed approach was executed. The crew then tried an ILS approach on runway 14 of the same airport, but a missed approach had to be executed again as both pilots had failed to spot the runway once again. On the crew's third approach (second on runway 14), the plane got too low while it was still several hundred meters from the runway but neither crew member realized this (due to the poor visibility) and the plane crashed into a swamp about 550 meters short of the runway.