Violations occurring over a 4½ year period—from October 1993 to July 1998—targeted American Airlines for using high-sulfur fuel in motor vehicles at 10 major airports around the country. Under the federal Clean Air Act high sulfur fuel cannot be used in motor vehicles. American Airlines promptly identified and corrected these violations of the Clean Air Act.[79]
American's economy plus product (not to be confused with premium economy), Main Cabin Extra, is available on most of the mainline fleet and American Eagle regional aircraft with more than 50 seats. Exceptions include a majority of former US Airways aircraft (as of May 2014), US Airways Express regional aircraft, and a handful of 777-200ERs that have yet to be retrofitted. Seats range from 17.2–19.5 inches (44–47 cm) in width and have 34–38 inches (86–97 cm) of pitch, which is 5–6 more inches of pitch offered in regular economy seating.[38] American retained Main Cabin Extra when the new Premium Economy product entered service in late 2016.[40]
To help fund the site, the founders created special edition breakfast cereals, with presidential candidates Barack Obama and John McCain as the inspiration for "Obama O's" and "Cap'n McCains".[25] In two months, 800 boxes of cereal were sold at $40 each, which generated more than $30,000 for the company's incubation.[26][27] It also got the company noticed by computer programmer Paul Graham, who invited the founders to the January 2009 winter training session of his startup incubator, Y Combinator, which provided them with training and $20,000 in funding in exchange for a small interest in the company.[18][28][29] With the website already built, they used the $20,000 Y-Combinator investment to fly to New York City to meet users and promote the site.[30] They returned to San Francisco with a profitable business model to present to West Coast investors. By March 2009, the site had 10,000 users and 2,500 listings.[29]

AAdvantage is the frequent flyer program for American Airlines. It was launched on May 1, 1981, and it remains the largest frequent flyer program with over 67 million members as of 2011. Miles accumulated in the program allow members to redeem tickets, upgrade service class, or obtain free or discounted car rentals, hotel stays, merchandise, or other products and services through partners. The most active members, based on the amount and price of travel booked, are designated AAdvantage Gold, AAdvantage Platinum, AAdvantage Platinum Pro, and AAdvantage Executive Platinum elite members, with privileges such as separate check-in, priority upgrade and standby processing, or free upgrades. They also receive similar privileges from AA's partner airlines, particularly those in oneworld.[48]

First Class is offered on all domestic mainline aircraft, as well as regional aircraft with more than 50 seats. When such aircraft are used on flights to international destinations including Canada, Mexico, Central America, and the Caribbean, the First Class cabin is branded as Business Class. Seats range from 19–21 inches (48–53 cm) in width and have 37–42 inches (94–106 cm) of pitch.[38] Dining options include free snacks, beverages, and alcohol on all flights, with three-course meals offered on flights 900 miles (1,448 km) or longer (select routes under 900 miles offer meal service).[39]


A‌i‌r‌b‌n‌b‌,‌ ‌I‌n‌c‌.‌ is a privately held global company headquartered in San Francisco that operates an online marketplace and hospitality service which is accessible via its websites and mobile apps. Members can use the service to arrange or offer lodging, primarily homestays, or tourism experiences. The company does not own any of the real estate listings, nor does it host events; as a broker, it receives commissions from every booking.[3]
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