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Last updated: 17 May 2021
Estado:
Fecha:lunes 21 enero 1980
Hora:19:11
Tipo:Silhouette image of generic B721 model; specific model in this crash may look slightly different
Boeing 727-86
Operador:Iran Air
Registración: EP-IRD
Numéro de série: 19817/537
Año de Construcción: 1968-02-17 (11 years 11 months)
Motores: 3 Pratt & Whitney JT8D-7B
Tripulación:Fatalidades: 8 / Ocupantes: 8
Pasajeros:Fatalidades: 120 / Ocupantes: 120
Total:Fatalidades: 128 / Ocupantes: 128
Daños en la Aeronave: Destruido
Consecuencias: Written off (damaged beyond repair)
Ubicación:29 km (18.1 milles) N of Tehran-Mehrabad Airport (THR) (   Irán)
Fase: Aproximación (APR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Mashhad Airport (MHD/OIMM), Irán
Aeropuerto de Llegada:Tehran-Mehrabad Airport (THR/OIII), Irán
Número de Vuelo:IR291
Descripción:
A Boeing 727-86 passenger jet, registered EP-IRD, was destroyed in a CFIT accident 29 km N of Tehran, Iran. All 120 passengers and eight crew members were killed. The airplane operated on a flight from Mashhad Airport (MHD) to Tehran-Mehrabad Airport (THR).
The aircraft had been cleared for an ILS approach to runway 29 at 18:52 hours. At 19:11 the aircraft crashed in the Elburz Mountains north of Teheran.
The investigation revealed that the pilot did not follow the ATS route, but proceeded straight to Mehrabad Airport. About six minutes before impact ATC asked the pilot to make a 360 deg turn over Varamin Non-directional Radio Beacon (NDB). The pilot made this 17nm to the north without advising ATC. On approach the copilot pointed out VORTAC radial crossing on wrong track, but the pilot did not react.

Probable Cause:

PROBABLE CAUSE: Inoperable ILS and ground radar.

Fuentes:
» A Benefit Analysis for Cabin Water Spray Systems and Enhanced Fuselage Burnthrough Protection (CAA PAPER 2002/04)


Fotos

photo of Boeing-727-86-EP-IRD
accident date: 21-01-1980
type: Boeing 727-86
registration: EP-IRD
 

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Mashhad Airport to Tehran-Mehrabad Airport as the crow flies is 747 km (467 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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Boeing 727

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