Iran Air Flight 742 was a Boeing 727 passenger jet on a scheduled service from Moscow, Russia, to Tehran, Iran, which on 18 October 2011 made an emergency landing at Tehran's Mehrabad International Airport, after the nose landing gear failed to deploy.

[1][2][3] Arriving from Moscow's Sheremetyevo International Airport with 94 passengers and 19 crew, at 15:20 local time flight 742 was approaching Tehran Imam Khomeini International Airport, when the crew received a "not down and locked" indication for the nose gear and aborted the approach.

[3][4] Following an unsuccessful attempt at troubleshooting, the crew, led by captain Hushang Shahbazi, decided to divert to Mehrabad where a low approach confirmed the nose gear was not extended.

Although initially subjected to a ban from flying while the incident was investigated,[1] Captain Shahbazi was acclaimed as a national hero, and received more than 11,000 emails from people in Iran and overseas.

[6] He was subsequently forced into early retirement due to his alleged portrayal of Iranian airlines as being unsafe as well as his public opposition to US sanctions, which restricted the sale of spare aircraft parts to Iran.