The International Air Transport Association (IATA) has asked the Thailand Government to address safety and capacity issues at the Suvarnabhumi Airport in Bangkok.
IATA director general and CEO Tony Tyler said: "These assessments look at what the government is doing -- not the airlines. Thai Airways and Bangkok Airways are IATA members and, along with Thai Lion Air and Orient Thai Airlines are on the registry of the IATA Operational Safety Audit (IOSA). This demonstrates that they are operating to the highest global standards for operational safety.
"International Civil Aviation Organisation (ICAO) and the US Department of Transportation's Federal Aviation Administration (FAA) have pointed out safety oversight concerns and divergence from global standards at the government level. Safety is aviation's top priority. The Government of Thailand must address these concerns in support of a vibrant aviation sector that is the backbone of travel and tourism."
Additionally, IATA has directed the South-Asian nation to mandate IOSA as a requirement for all Thai-registered airlines.
The latest development follows last year's downgrading of Thailand's air safety rating by FAA on non-compliance with ICAO safety standards.
Thailand's Department of Civil Aviation's rating was degraded to Category 2 from Category 1 based on a reassessment conducted in July last year.
Despite the terminal design capacity of 45 million passengers, Suvarnabhumi currently serves more than 52 million passengers amidst demand growing by 10% every year.