KEY POINTS
  • Transportation Secretary Elaine Chao has asked for a formal audit of the FAA's approval of Boeing 737 Max 8 planes.
  • Two of the jets have been involved in fatal crashes in less than five months.
  • Chao asked the agency's inspector general to audit the FAA's process.
Elaine Chao, U.S. secretary of transportation, delivers the keynote speech during the U.S. Chamber of Commerce Aviation Summit in Washington, D.C., March 7, 2019.

The Department of Transportation on Tuesday asked the agency's watchdog to audit the Federal Aviation Administration's approval of Boeing's 737 Max 8 aircraft after two fatal crashes of the new and fast-selling planes in less than five months killed 346 people.

Transportation Secretary Elaine Chao on Tuesday sent a memo to Calvin Scovel, the department's inspector general, formalizing the request.