Airlines follow a corporate structure where each broad area of operations (such as maintenance, flight operations (including flight safety), and passenger service) is supervised by a vice president. Larger airlines often appoint vice presidents to oversee each of the airline's hubs as well. Airlines employ lawyers to deal with regulatory procedures and other administrative tasks.[86]
Airline booking ploys Airline reservations system Airline ticket Airline timetable Bereavement flight Boarding pass Codeshare agreement Continent pass Electronic ticket Fare basis code Flight cancellation and delay Frequent-flyer program Government contract flight One-way travel Open-jaw ticket Passenger name record Red-eye flight Round-the-world ticket Standby Tracking Travel agency Travel website 

If storms coincide with unusually high tides, or with a freak wave event such as a tidal surge or tsunami which causes significant coastal flooding, substantial quantities of material may be eroded from the coastal plain or dunes behind the berm by receding water. This flow may alter the shape of the coastline, enlarge the mouths of rivers and create new deltas at the mouths of streams that had not been powerful enough to overcome longshore movement of sediment.


Congress passed the Air Transportation Safety and System Stabilization Act (P.L. 107-42) in response to a severe liquidity crisis facing the already-troubled airline industry in the aftermath of the September 11th terrorist attacks. Through the ATSB Congress sought to provide cash infusions to carriers for both the cost of the four-day federal shutdown of the airlines and the incremental losses incurred through December 31, 2001, as a result of the terrorist attacks. This resulted in the first government bailout of the 21st century.[44] Between 2000 and 2005 US airlines lost $30 billion with wage cuts of over $15 billion and 100,000 employees laid off.[45]
In January 2013, Hawaiian signed a Memorandum of Understanding with Airbus for an order of 16 A321neo aircraft plus up to 9 options. The aircraft is operated in a 2-class, 189 seat configuration.[80] Following the completion of labor agreements relating to the operation of the aircraft with the airline's pilot and flight attendant unions, the airline finalized the order in March 2013.[81] In December 2016, Hawaiian announced their intention of leasing two additional A321neo aircraft, bringing their total fleet of the type to 18. The first flight took place on January 17 from Kahului to Oakland.[63] 

Air transport agreement Bermuda Agreement (UK-US, 1946-78) Bermuda II Agreement (UK-US, 1978-2008) China-US Cross-Strait charter (China-Taiwan) Beijing Convention Cape Town Treaty Chicago Convention Convention on the Marking of Plastic Explosives European Common Aviation Area Flight permit Freedoms of the air Hague Hijacking Convention Hague Protocol ICAO Montreal Convention Open skies (EU–US Open Skies Agreement) Paris Convention of 1919 Rome Convention Sabotage Convention Tokyo Convention Warsaw Convention
Following the 1978 deregulation, U.S. carriers did not manage to make an aggregate profit for 12 years in 31, including four years where combined losses amounted to $10 billion, but rebounded with eight consecutive years of profits since 2010, including its four with over $10 billion profits. They drop loss-making routes, avoid fare wars and market share battles, limit capacity growth, add hub feed with regional jets to increase their profitability. They change schedules to create more connections, buy used aircraft, reduce international frequencies and leverage partnerships to optimise capacities and benefit from overseas connectivity.[51]
common.mobile.fragment.datapicker.screenreader.text Valid date format: two-digit day, two-digit month, then full four-digit year, each separated by a forward slash or space. Example, enter 21 space 09 space 2016 to represent September 21, 2016, or 01/08/2016 to represent August 1, 2016. Alternately, use arrow keys to move through dates in the calendar grid.

In the 1950s, the De Havilland Comet, Boeing 707, Douglas DC-8, and Sud Aviation Caravelle became the first flagships of the Jet Age in the West, while the Eastern bloc had Tupolev Tu-104 and Tupolev Tu-124 in the fleets of state-owned carriers such as Czechoslovak ČSA, Soviet Aeroflot and East-German Interflug. The Vickers Viscount and Lockheed L-188 Electra inaugurated turboprop transport.
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