Caspian Airlines Flight 7908

Caspian Airlines

Company type	Airline
Industry	Aviation
Headquarters	Tehran , Iran
Products	Passenger air services

Caspian Airlines Flight 7908 Accident Overview

Caspian Airlines Flight 7908 was operating a regular passenger service from Tehran, Iran, to Yerevan, Armenia, when it crashed near the village of Jannatabad, close to Qazvin city in northwestern Iran, on 15 July 2009. The tragedy claimed the lives of all 168 individuals aboard, consisting of 153 passengers and 15 crew members.

This disaster ranks as the fourth most fatal aviation accident in Iran's history, following Iran Air Flight 655 in 1988, the Ilyushin Il-76 crash in 2003, and Ukraine International Airlines Flight 752 in 2020. Globally, it was the second deadliest plane crash of 2009, surpassed only by Air France Flight 447.

The official investigation determined that the catastrophe originated from a fatigue-induced failure that caused the rotor disc in the left engine (engine #1) to fragment. The debris from this failure damaged two of the aircraft’s three hydraulic systems and ruptured fuel lines connected to the center engine (engine #2). The leaking fuel subsequently ignited, generating a substantial fire that destroyed essential control mechanisms for the elevators and rudder. This sequence of events led to an irreversible loss of control by the flight crew.

Aircraft and crew

The aircraft involved was a Tupolev Tu-154M manufactured in 1987 and operated by Iran's Caspian Airlines, as confirmed by a representative from Iran's aviation authority.

Registered as EP-CPG, this plane originally entered service on 20 April 1987 under the registration YA-TAR for Bakhtar Afghan Airlines. It was subsequently transferred to Ariana Afghan Airlines in 1988. After approximately 11 years of operation with Ariana Afghan, the aircraft was sold to Caspian Airlines on 15 March 1998.Template:Fix/category The registration was changed to EP-CPG in 1999.

A safety inspection was conducted in June 2009, and the aircraft was certified for flight operations until 2010. An Armenian aviation official also confirmed that the plane underwent technical checks at Mineralnye Vody Airport in southern Russia during June of that year.

The cockpit crew included Captain Ali Asghar Shir Akbari, First Officer Javad Masoumi Hesari, Navigator Mahdi Firouse Souheil, and Flight Engineer Nima Salehie Rezve.

Accident

Template:Location map many At 11:33 Iran Daylight Time (07:03 UTC), the plane crashed just 16 minutes following its departure from Tehran Imam Khomeini International Airport. Authorities reported that the tail section of the aircraft suddenly ignited. The pilot attempted multiple circles in search of a safe landing area but was unable to locate one. Upon impact with a field, the aircraft was obliterated, creating a crater approximately 10 metres (33 ft) deep. An eyewitness, who stated they were within 300 metres (330 yd; 980 ft) of the crash location, described the incident as the plane "simply dropping from the sky." Fires persisted over an expanse exceeding 200 square metres (2,200 sq ft) even three hours post-crash.

A witness recounted to Fars News Agency:

On 16 July, both the cockpit voice recorder and flight data recorder were recovered. Nevertheless, Chief Investigator Ahmad Majidi indicated that one of these "black boxes" sustained damage. Despite this, investigators successfully retrieved data from both devices, which played a crucial role in analyzing the cause of the accident.

Nationalities

Among the 168 individuals on board, it was reported that 38, including two crew members, held Iranian nationality. Forty passengers were identified as Armenian citizens. Additionally, there were two passengers from Georgia, two Canadians, and two dual nationals holding both Iranian and Australian citizenship. The manifest also included two individuals with dual Iranian-American nationality.

Nationality	Passengers	Crew	Total
Undetermined	69	—	69
Armenia	40	13	53
Iran	36	2	38
Georgia	2	—	2
Canada	2	—	2
Australia	2	—	2
United States	2	—	2
Total	153	15	168

Aftermath

Memorial dedicated to the victims at Tehran's Nor Burastan Cemetery

The President of Iran at the time, Mahmoud Ahmadinejad, conveyed his condolences to the families and friends of those who perished. Meanwhile, Armenian President Serzh Sargsyan declared 16 July 2009 a national Day of Mourning in Armenia by presidential decree.

Investigation

On 15 July, Armenian President Serzh Sargsyan announced the formation of a government commission tasked with probing the incident, appointing Vice Prime Minister Armen Gevorgyan as its head.

Officials from Iran attributed the crash primarily to technical failure. Their investigation suggested that an engine malfunction caused by a bird strike led to a fire, which ultimately resulted in loss of aircraft control and the subsequent crash.

A timeline released on 23 December 2014 detailed that during ascent to approximately 9,700 metres (31,800 ft), the crew reported a fire in engine number one. The climb was halted at around 8,700 metres (28,500 ft). Approximately three minutes before impact, the plane executed a 270-degree turn before descending rapidly at an estimated vertical speed of 70 metres (230 ft) per second. Sixteen minutes after takeoff, the Tu-154M collided with terrain near Jannatabad village, roughly 120 kilometres (75 mi; 65 nmi) from Khomeini Airport. The aircraft was destroyed on impact, producing a crater about 10 metres (33 ft) deep. The commission concluded that failure of the low pressure compressor on engine one led to debris dispersal that damaged the fuselage and fuel lines, causing a swift spread of fire.

Although the official accident report was presumably issued by Iranian authorities in 2011, it did not gain broader recognition until portions were translated into English in 2019. This report identified fatigue failure of the first stage rotor in engine number one’s low pressure compressor as the root cause. The rotor disc disintegrated, sending fragments that destroyed engine one, cut off hydraulic systems one and three, and partially severed fuel lines to engine two. The resulting fire ignited from hot parts and leaking fuel mixed with hydraulic fluid rapidly engulfed the tail section, destroying control rods for the elevators and rudder and leading to loss of pilot control.

Prior to this accident, manufacturer Tupolev had issued a service bulletin mandating more rigorous inspections of low pressure compressor parts; however, this guidance was distributed only in Russian to Russian operators until six days after this crash when Tupolev extended similar bulletins to all operators globally.

See also

• Aeroflot Flight 3519
• Baikal Airlines Flight 130

External links

• Official accident investigation report
• "Minutes from Moscow IAC Meeting, July 6, 2010." (Archived) Iran Civil Aviation Organization.
• Interstate Aviation Committee
  • "Ту-154М EP-CPG 15.07.2009 Archived 27 April 2012 at the Wayback Machine." (Alternative link) (Archived) (in Russian) – the authoritative Russian source
  • "Ту-154М EP-CPG 15.07.2009."
• Complete Victim Roster (Archived)
• Passenger and Crew Manifest for Tehran–Yerevan Flight 7908 – Caspian Airlines (Archived)
• Aircraft Profile for EP-CPG Airframes.org
• Final Passenger List for Flight CPN-7908, July 15, 2009 – General Department of Civil Aviation – Armenia (Archived)