sentences:  However, Admiral Bannawit Keng-rien, chairman of the National Legislative Assembly's airport committee, urged Surayud to close down Suvarnabhumi.Surayud's decision to reopen Don Muang was based on his personal advisors, without waiting for the Ministry of Transport or Airports of Thailand to finish their studies.A completed study by the AoT showed that the cost of fixing 60 identified problems at the airport would be less than 1% of the total airline cost and the problems could be fixed in up to four to five years.