Chicago, Jan 10 (TIWN) The release of a batch of internal messages has raised more questions about the safety of Boeing's 737 Max aircraft that is currently grounded after two fatal crashes that killed around 350 people.

The messages also show attempts to duck regulatory scrutiny with employees ridiculing the plane, the company, the Federal Aviation Administration and foreign aviation regulators.  In an instant messaging exchange on Feb. 8, 2018 - when the plane was in the air and eight months before the first of two fatal crashes, an employee asks another: "Would you put your family on a MAX simulator trained aircraft? I wouldn't".  The second employee responds: "No".  In particular, some of the communications reveal efforts by Boeing to avoid making pilot simulator training - an expensive and time-consuming process - a requirement for the 737 MAX.