Iran Air Flight 291

Iran Air Flight 291

File:Boeing 727-86, Iran Air AN2176292.jpg An Iran Air Boeing 727-100, similar to the one involved.
Accident summary
Date	January 21, 1980 (1980-01-21)
Summary	Inoperable ILS and ground radar
Site	Alborz Mountains, Iran
Passengers	120
Crew	8
Fatalities	128
Survivors	0
Aircraft type	Boeing 727-86
Operator	Iran Air
Registration	EP-IRD
Flight origin	Mashhad Airport (MHD/OIMM), Iran
Destination	Tehran-Mehrabad Airport (THR/OIII), Iran

On January 21, 1980, an Iran Air Boeing 727-86 was making a domestic flight from Mashad Airport to Tehran-Mehrabad Airport in Iran. At 1911h local time, the aircraft, registered as EP-IRD, collided with the Alborz Mountains, 29 kilometres (18 mi) north of Tehran, during its approach to Tehran-Mehrabad runway 29 in foggy and snowy weather conditions. All 8 crew members and 120 passengers died in the incident, and the plane was destroyed. At the time, Iran Air Flight 291 was the deadliest aircraft disaster in Iranian history.

Investigators concluded that the probable cause of the crash was believed to be an inoperable instrument landing system and ground radar. The head of Iran's Civil Aviation Authority and five other officials were charged with manslaughter as a result of the crash of Flight 291.