The FBI reportedly aids criminal probe of Boeing 737 Max certification

A Southwest Boeing 737 Max 8 enroute via Tampa prepares to land at Fort Lauderdale-Hollywood International Airport on March 11, 2019.

Joe Raedle | Getty Images

A Southwest Boeing 737 Max 8 enroute via Tampa prepares to land at Fort Lauderdale-Hollywood International Airport on March 11, 2019.

Shares of Boeing fell in after-market trading Wednesday on news of which the FBI has reportedly joined a criminal investigation of the certification process for the company’s 737 Max jets, two of which have crashed since October killing 346 people.

The Seattle Times reported of which the bureau will be assisting federal aviation investigators in a federal grand jury probe based in Washington, D.C., looking into the process. Boeing’s shares were down less than 1 percent.

The news comes after the Department of Transportation on Tuesday asked the department’s watchdog to audit the Federal Aviation Administration’s approval of Boeing’s 737 Max 8 aircraft.

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

Boeing in addition to the FAA, which certified the plane two years ago, are under increasing scrutiny after the crash of Ethiopian Airlines Flight 302 on March 10, which went down shortly after takeoff, killing all 157 people on board. Investigators who have extracted data via the airliner’s black boxes said they detected “clear similarities” between the Ethiopian Airlines flight in addition to a crash in Indonesia in October of which killed all 189 on board.

The FAA said Wednesday of which reviewing a possible software fix for the grounded airplanes will be “an agency priority.”

Boeing has been working on a software update of which will be required to correct issues with the 737 Max maneuvering characteristics augmentation system. of which system, which can push the nose of a 737 Max lower to avoid a stall, will be suspected as being a contributing factor inside the crash of a Lion Air jet in Indonesia in October.