Boeing Co. released a new batch of internal messages in which company employees discussed deep unease with the 737 Max and problems in flight simulators used to train pilots on the new jetliner, while also trying to avert greater regulator scrutiny of the plane.

“This airplane is designed by clowns, who in turn are supervised by monkeys,” said one company pilot in messages to a colleague in 2016, which Boeing disclosed publicly late Thursday. The company had already provided the documents to lawmakers and the U.S. Federal Aviation Administration, who are investigating the 737 Max and the process that cleared it to fly.

玩笑开得有点大