British Airways plc or BA (LSE: BAY) is the flag carrier airline of the United Kingdom

British Airways plc or BA (LSE: BAY) is the flag carrier airline of the United Kingdom. BA has its headquarters in Waterside near its main hub at London Heathrow Airport and is the largest airline in the UK based on fleet size, international flights and international destinations. Its second hub is London Gatwick Airport. British Airways has discontinued all direct overseas flights from UK airports other than Heathrow, Gatwick and London City Airport. BA's UK passengers originating at non-London airports must now connect via London or use other airlines with direct services.

American Airlines Flight 587, an Airbus A300

American Airlines Flight 587, an Airbus A300, crashed into the Belle Harbor neighborhood of Queens,a borough of New York City in New York, shortly after takeoff from John F. Kennedy International Airport on November 12, 2001. This is the second deadliest U.S. aviation accident to date, after American Airlines Flight 191.

Singapore Airlines Limited (SIA)(SGX: C6L) is the flag carrier of Singapore....

Singapore Airlines Limited (SIA) (SGX: C6L) is the flag carrier of Singapore. Singapore Airlines operates a hub at Singapore Changi Airport and has a strong presence in the Southeast Asia, East Asia, South Asia, and "Kangaroo Route" markets. The company also operates trans-Pacific flights, including the world's two longest non-stop commercial flights from Singapore to Newark, New Jersey and Los Angeles, California on the Airbus A340-500.
Singapore Airlines was the launch customer of the "superjumbo" Airbus A380. SIA has diversified into airline-related businesses such as aircraft handling and engineering.

Its wholly-owned subsidiary, SilkAir, manages regional flights to secondary cities with smaller capacity requirements. Subsidiary Singapore Airlines Cargo operates SIA's dedicated freighter fleet, and manages the cargo-hold capacity in SIA's passenger aircraft. SIA has a 49% shareholding in Virgin Atlantic and has also responded to the threats posed by the low-cost sector by investing a 49% stake in Tiger Airways. It ranks amongst the top 15 carriers worldwide in terms of revenue passenger kilometres, is the 11th largest airline in Asia and ranked 6th in the world for international passengers carried.

On 15 December 1989, KLM Flight 867 en route to Narita International Airport....

On 15 December 1989, KLM Flight 867 en route to Narita International Airport, Tokyo from Amsterdam was descending into Anchorage International Airport when the Boeing 747-400 flew though a thick cloud of volcanic ash from Mount Redoubt.All four engines failed leaving only critical systems on backup electrical power. After descending more than 14,000 feet, Captain Karl van der Elst and crew were finally able to restart the engines and safely land the plane. In this case the ash caused more than $80 million U.S. dollars in damage to the aircraft, but no lives were lost.

When all four main generators shut off due to the failure of all the engines, a momentary power interruption occurs when the flight instruments transfer to standby power. Standby power on the 747-400 is provided by two batteries and inverters. The captain performed the engine restart procedure which was not successful on the first few attempts and was repeated until restart was achieved. On some of the attempts, as one or more (but not all) engines started to operate, the main generator would switch back on. This switching on and off caused repeated power transfer interruptions to the flight instruments. The temporary blanking of the instruments gave the appearance that standby power had failed. These power transfers were later verified from the flight data recorder.

AirAsia Berhad dba AirAsia (MYX: 5099) is a Malaysian low-cost airline...

AirAsia Berhad dba AirAsia (MYX: 5099) is a Malaysian low-cost airline. It operates scheduled domestic and international flights and is Asia's largest low fare, no frills airline. AirAsia pioneered low cost travelling in Asia. It is also the first airline in the region to implement fully ticketless travel and unassigned seats. However, as of 5 February 2009, AirAsia has finally implemented allocated seatings across all AirAsia flights, including in their sister airlines, Indonesia AirAsia and Thai AirAsia. Its main base is the Low Cost Carrier Terminal (LCCT) at Kuala Lumpur International Airport (KLIA). Its affiliate airlines Thai AirAsia and Indonesia AirAsia have hubs at Suvarnabhumi Airport, Thailand and Soekarno-Hatta International Airport, Indonesia, respectively. The airline is also considering founding Hong Kong AirAsia in the future.AirAsia's registered office is in Petaling Jaya, Selangor while its head office is on the grounds of Kuala Lumpur International Airport in Sepang, Selangor.