The system had already been featured on another Boeing aircraft before the MAX entered commercial service.

A new problem for Boeing 737 Max planes has been identified. Boeing employees were alerted of the issue in a memo Sunday by Stan Deal, the president and CEO of the company's commercial aircraft unit.

Even before the Lion Air and Ethiopian Airlines crashes claimed 346 lives, Boeing flight tests had revealed problems similar to those encountered by pilots on the ill-fated 737 MAX flights. Company ...