WASHINGTON, March 7 (Reuters) - The National

Transportation Safety Board (NTSB) said Thursday it is

investigating a Feb. 6 United Airlines Boeing 737

MAX 8 flight that experienced "stuck" rudder pedals during the

landing rollout.

The NTSB said in a preliminary report the plane taxied to

the gate at Newark Airport without incident and there were no

injuries to the 161 passengers and crew. The captain said that

during the landing rollout, the rudder pedals did not move in

response to "normal" application of foot pressure while

attempting to maintain the runway centerline.