Mitsubishi's CRJ-900 is a medium-sized regional jet airliner that was introduced in 1998 and is known for its fuel efficiency and comfort. It is the largest variant of the CRJ family and is one of the most popular regional jets in the world today. The CRJ-900 has been manufactured since 1998 and has been updated over the years to keep up with the changes in technology.

Mitsubishi decided to manufacture the CRJ-900 to fill the gap between the smaller and larger regional jets, providing an efficient and comfortable option for short-haul flights. It was designed with a focus on fuel efficiency, boasting a fuel burn rate that is 30% lower than other regional jets in its class. The CRJ-900 has a range of up to 2,000 nautical miles and can seat up to 90 passengers in a two-class configuration.

The CRJ-900 has become one of the most common regional jets in the world, with over 600 aircraft in service worldwide. It has become a popular choice for airlines due to its efficiency, comfort, and low operating costs. In addition, the CRJ-900 is able to operate at airports with shorter runways, making it an ideal choice for small, regional airports.

Despite its popularity, the CRJ-900 has faced some issues with safety over the years. In 2014, the Federal Aviation Administration (FAA) issued an airworthiness directive for the CRJ-900, citing issues with the aircraft's rudder system. The directive required that airlines inspect and replace certain components of the rudder system, as well as update their aircraft maintenance programs to ensure that the system was properly maintained.

The CRJ-900 is packed with innovative features and technologies, including a state-of-the-art avionics suite and an advanced cabin management system. It also has an impressive wing design that increases fuel efficiency and reduces drag. The aircraft also features a new engine design that reduces noise and emissions, making it one of the most environmentally friendly regional jets in its class.

The CRJ-900 stands out from other aircraft in its class due to its fuel efficiency, comfort, and innovative technology. It is an ideal choice for airlines looking for an efficient and cost-effective option for short-haul flights. The CRJ-900 is reliable, efficient, and comfortable, making it one of the most popular regional jets in the world.