Calhoun's appearance also was scheduled to take place as the Justice Department considers whether to prosecute Boeing for violating terms of a settlement following the fatal crashes. The company says it has gotten the message. Boeing says it has slowed production, encouraged employees to report safety concerns, stopped assembly lines for a day to let workers talk about safety, and it appointed a retired Navy admiral to lead a quality review. Late last month, it delivered an improvement plan ordered by the FAA. The drumbeat of bad news for Boeing goes on, however.