TransAsia Airways, Taiwan's first private airline company, was founded in 1951. On July 23rd 2014, the airline suffered a fatal accident when an ATR 72-500 impacted the ground approximately 1000m short of the runway at Magong Airport, killing 48 of the 58 occupants. The airline then experienced a second fatal accident on the 4th of February 2015 when an ATR 72-500 crashed into the Keelung River after suffering an engine failure, killing 44 of the 58 occupants. Preliminary reports suggest that the crash on the 4th of February was the result of pilot error, as the aircraft’s Flight Data Recorder (FDR) indicated that the incorrect engine was shut down shortly after take-off. The exact cause of the accident is still being investigated.

Given that pilot error was identified as a primary contributory factor leading to the accident, the airline’s ATR flight crew were subjected to extensive re-training. During this program, it was found that out of the 49 pilots examined, ten required additional training after failing to adequately carry out emergency procedures during an engine failure event. Pilot communication and cross checking procedures were also criticised by Taiwan’s Civil Aviation Administration (CAA), as data from the Cockpit Voice Recorder (CVR) indicated that miscommunication of crucial instructions between the crew had occurred.

The European Aviation Safety Agency (EASA) had stated it would continue to monitor the airline’s operations until the final accident report is released. It will then undertake an investigation to determine if any further potential deficiencies within the airline can be identified. The CAA will also be exposed to an EASA examination to ensure that the level of oversight provided by the regulator is in line with international standards

Cebgo originally commenced operations in 1995 as South East Asian Airlines. In 2011, the Tiger Airways Holding group successfully acquired a minority share in the airline. After increasing its stake in the airline, it was subsequently re-branded as Tigerair Philippines in 2013. The airline was then acquired by Cebu Pacific in 2014 and was re-branded as 'Cebgo' in May 2015. Cebu Pacific subsequently initiated plans to re-establish the airline as a regional carrier. As a result, the airline has now entirely phased out its remaining jet aircraft and exclusively operates a fleet of ATR turbo-prop aircraft. This fleet adjustment has resulted in a further increase to the airline’s score within the ARC.

In December 2015, the U.S. Federal Aviation Administration (FAA) downgraded Thailand from a ‘Category 1’ to a ‘Category 2’ listed country after its regulatory body, the Department of Civil Aviation of Thailand (DCA), failed to comply with internationally recognised standards in regulatory oversight. The downgrade indicates that the DCA lacks the capability to provide a sufficient standard of oversight of the aviation industry within Thailand. Furthermore, it can also indicate that the regulatory authority is deficient in areas such as technical expertise, personnel training and inspection capabilities.