Aircraft hijacking is the unlawful seizure of an aircraft by an individual or a group. Dating from the earliest of hijackings, most cases involve the pilot being forced to fly according to the hijacker's demands. There have also been incidents where the hijackers have overpowered the flight crew, made unauthorized entry into the cockpit and flown them into buildings – most notably in the September 11 attacks – and in some cases, planes have been hijacked by the official pilot or co-pilot, such as with Ethiopian Airlines Flight 702.
Ahmed Ibrahim al-Haznawi al-Ghamdi was a Saudi terrorist hijacker. He was one of the four hijackers of United Airlines Flight 93, which was crashed into a field in Stonycreek Township, Pennsylvania, following a passenger revolt, as part of the September 11 attacks.
After the September 11 attacks, there was an immediate call to action regarding the state of aviation security measures as the hijackers involved in 9/11 were able to successfully pass through security and take command of the plane. The existing security measures flagged more than half of the 19 hijackers in 9/11; however, they were cleared to board the plane because their bags were not found to contain any explosives. In the months and years following September 11, 2001, security at many airports worldwide were reformed to deter similar terrorist plots.
Pentaerythritol tetranitrate (PETN), also known as PENT, pentyl, PENTA, TEN, corpent, or penthrite, is an explosive material. It is the nitrate ester of pentaerythritol, and is structurally very similar to nitroglycerin. Penta refers to the five carbon atoms of the neopentane skeleton. PETN is a very powerful explosive material with a relative effectiveness factor of 1.66. When mixed with a plasticizer, PETN forms a plastic explosive. Along with RDX it is the main ingredient of Semtex.
Richard Colvin Reid, also known as the Shoe Bomber, is the perpetrator of the failed shoe bombing attempt on a transatlantic flight in 2001. Born to a father who was a career criminal, Reid converted to Islam as a young man in prison after years as a petty criminal. Later he became radicalized and went to Pakistan and Afghanistan, where he trained and became a member of al-Qaeda.
Air France Flight 8969 was an Air France flight that was hijacked on 24 December 1994 by the Armed Islamic Group of Algeria (GIA) at Houari Boumediene Airport, Algiers. The militants murdered three passengers and their intention was either to detonate the aircraft over the Eiffel Tower or the Tour Montparnasse in Paris. When the aircraft reached Marseille, the National Gendarmerie Intervention Group (GIGN), a tier one counterterrorism and hostage rescue unit of the French National Gendarmerie, stormed the plane and killed all four hijackers.
Airport security includes the techniques and methods used in an attempt to protect passengers, staff, aircraft, and airport property from malicious harm, crime, terrorism, and other threats.
Ramzi Ahmed Yousef is a convicted terrorist who was one of the main perpetrators and the mastermind behind the 1993 World Trade Center bombing and the bombing of Philippine Airlines Flight 434; he was also a co-conspirator in the Bojinka plot. In 1995, he was arrested by the Pakistani Inter-Services Intelligence (ISI) and U.S. Diplomatic Security Service at a guest house in Islamabad, Pakistan, while trying to set a bomb in a doll, then extradited to the United States.
The Bojinka plot was a large-scale, three-phase terrorist attack planned by Ramzi Yousef and Khalid Sheikh Mohammed for January 1995. They planned to assassinate Pope John Paul II; blow up 11 airliners in flight from Asia to the United States, with the goal of killing approximately 4,000 passengers and shutting down air travel around the world; and crash a plane into the headquarters of the United States Central Intelligence Agency (CIA) in Langley, Virginia.
Philippine Airlines Flight 434, sometimes referred to as PAL434 or PR434, was a scheduled flight on December 11, 1994, from Manila to Tokyo with a quick stopover in Cebu on a Boeing 747-283B that was seriously damaged by a bomb, killing one passenger and damaging vital control systems, although the plane was in a repairable state. The bombing was a test run of the unsuccessful Bojinka terrorist attacks. The Boeing 747 was flying the second leg of a route from Mactan–Cebu International Airport in Cebu, Philippines to Narita International Airport, in Tokyo, Japan. After the bomb detonated, 58-year-old veteran pilot Captain Eduardo "Ed" Reyes was able to land the aircraft, saving it and the remaining passengers and crew.
Abderraouf bin Habib bin Yousef Jdey is a Canadian citizen, who was found swearing to die as a shaheed (martyr) on a series of videotapes found in the rubble of Mohammed Atef's house in Afghanistan in 2002.
Rigoberto Alpizar was a Costa Rican-born United States citizen who was fatally shot at Miami International Airport by two United States Federal Air Marshals.
The following is a list of attacks which have been carried out by Al-Qaeda.
Mohammed Mansour Jabarah is a Kuwaiti convicted of terrorism-related offences. Jabarah was active in al-Qaeda and Jemaah Islamiyah circles, and was arrested in 2002.
The 2006 transatlantic aircraft plot was a terrorist plot to detonate liquid explosives, carried aboard airliners travelling from the United Kingdom to the United States and Canada, disguised as soft drinks. The plot was discovered by British Metropolitan Police during an extensive surveillance operation. As a result of the plot, unprecedented security measures were initially implemented at airports. The measures were gradually relaxed during the following weeks, but passengers are still not allowed to carry liquid containers larger than 100 ml onto commercial aircraft in their hand luggage in the UK and most other countries, as of 2024.
The attempted bombing of Northwest Airlines Flight 253 occurred on December 25, 2009, aboard an Airbus A330 as it prepared to land at Detroit Metropolitan Airport following a transatlantic flight from Amsterdam. Attributed to the terrorist organization al-Qaeda in the Arabian Peninsula (AQAP), the act was undertaken by 23-year-old Nigerian national Umar Farouk Abdulmutallab using chemical explosives sewn to his underwear. These circumstances, including the date, led to Abdulmutallab being commonly nicknamed either the "Underwear bomber" or "Christmas Day bomber" by American media outlets. It also could have been the worst plane crash in the history of Michigan beating out Northwest Airlines Flight 255.
The United Airlines Flight 663 incident was a "minor international incident" in 2010 involving a Qatari diplomat on the leg of a United Airlines flight from Ronald Reagan Washington National Airport to Denver International Airport. The diplomat prompted a mid-air terrorism alert after smoking in the aircraft lavatory, which led the Qatari government to recall him two days later.
Failed terrorism plots are terrorist plots that have either been foiled, uncovered by authorities or failed through mistakes.
On October 29, 2010, two packages, each containing a bomb consisting of 300 to 400 grams (11–14 oz) of plastic explosives and a detonating mechanism, were found on separate cargo planes. The bombs were discovered as a result of intelligence received from Saudi Arabia's security chief. They were in transport from Yemen to the United States and were discovered at stopover locations: one at East Midlands Airport in the UK and one in Dubai in the United Arab Emirates.
