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Last updated: 20 September 2021
Datum:maandag 21 januari 1980
Type:Silhouette image of generic B721 model; specific model in this crash may look slightly different
Boeing 727-86
Luchtvaartmaatschappij:Iran Air
Registratie: EP-IRD
Constructienummer: 19817/537
Bouwjaar: 1968-02-17 (11 years 11 months)
Motoren: 3 Pratt & Whitney JT8D-7B
Bemanning:slachtoffers: 8 / inzittenden: 8
Passagiers:slachtoffers: 120 / inzittenden: 120
Totaal:slachtoffers: 128 / inzittenden: 128
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:29 km (18.1 mijl) N of Tehran-Mehrabad Airport (THR) (   Iran)
Fase: Nadering (APR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Mashhad Airport (MHD/OIMM), Iran
Vliegveld van aankomst:Tehran-Mehrabad Airport (THR/OIII), Iran
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.

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


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

Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Mashhad Airport en Tehran-Mehrabad Airport bedraagt 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

  • 1832 built
  • 32e ongeval
  • 28e dodelijk ongeval
  • 6e zwaarste ongeval (toen het plaatsvond)
  • 17e zwaarste ongeval (op dit moment)
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  • The zwaarste ongeval (toen het plaatsvond)
  • 6e zwaarste ongeval (op dit moment)
» safety profile