(Reuters) -Boeing on Tuesday denied fluctuations in the production of its 737 MAX jetliner after an industry publication said it had hit a key target only to fall back due to industrial delays.

Boeing CEO Kelly Ortberg will testify in front of the U.S. Senate today, facing some tough questions from lawmakers regarding the manufacturing behemoth’s safety issues and culture changes.

He will address the incident where a door plug blew out mid-flight on a trip from Portland. ALSO READ: Passenger recounts Boeing door plug blowout one year later He is also expected to have ...