Transwest Air is a small regional operator, servicing remote destinations throughout the Saskatchewan Province in Canada. The airline was founded in 2000 and is based at Prince Albert Airport. The airline operates a variety of aircraft types, many of which can be modified with floats allowing for take off and landings at water aerodromes such as La Ronge and Stony Rapids.

Airlines do not usually utilise low capacity aircraft such as the Piper Chieftain within their scheduled operations. However, due to the low volume of passengers and sparsely populated area of Saskatchewan, this aircraft type is ideally suited to Transwest's operations. In mid 2016, Transwest Air was acquired by the WestWind Aviation Group, a fellow Canadian aircraft operator and charter service provider. As a result of this acquisition, a number of aircraft are occasionally interchanged between the two fleets which may result in a WestWind branded aircraft performing a Transwest Air route and vice versa.

Transwest Air owns and operates a number of rotary-wing aircraft and also performs a number of charter and MEDEVAC flight services.It is important to note that this assessment only applies to the fixed wing scheduled operations of the airline and all helicopter and charter operations have been excluded. In mid 2017, the airline operated a small mixed fleet of turbo prop and piston engined aircraft, with an average age over 37 years. Whilst the overall average fleet age is considered to be very old, ageing fleets are not unusual for small regional Canadian operators.

The South Korean Ministry of Land, Infrastructure and Transport (MOLIT) has fined state carrier, Korean Air, for breaching a number of aircraft maintenance requirements. The airline had reportedly delayed or failed to perform the required maintenance inspections on aircraft over the past number of months. As a result, MOLIT has imposed USD1.5 Million fine on the airline. Fellow Korean airlines, Asian Airlines, T’Way Air and Jeju Air, were also penalised for similar infractions, including the falsification of flight logs and the expiration of pilot English proficiency certification.

In May 2017, the European Commission released an updated EU Air Safety list. Commonly referred to as the EU Ban list, it consists of airline carriers that are banned from operating within European Airspace due to the lack of adequate regulatory oversight and/or the serious safety concerns. As a part of this update, Med-View Airline (Nigeria), Mustique Airways (St. Vincent and the Grenadines), Aviation Company Urga (Ukraine) and Air Zimbabwe (Zimbabwe) were officially added to the EU Ban list as a result of unaddressed safety deficiencies that were detected by the European Aviation Safety Agency.