Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81, -82, -83, and -87 Series Airplanes; Model MD-88 Airplanes; and C-9 Airplanes

This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes; Model DC-9-81, -82, -83, and -87 series airplanes; Model MD-88 airplanes; and C-9 airplanes, that currently requires repetitive inspections to detect cracking of the rudder pedal adjuster hub assembly, and replacement of the assembly, if necessary. That AD also provides for an optional terminating action for the repetitive inspections. This amendment requires accomplishment of a new terminating action for the repetitive inspections. This amendment is prompted by that FAA's determination that further rulemaking is necessary. The actions specified by this AD are intended to prevent loss of rudder pedal control and reduction of braking capability.