Summary
This action withdraws a notice of proposed rulemaking that proposed a new airworthiness directive (AD), applicable to all Boeing Model 727 series airplanes. That action would have required inspections to detect loose attach fitting bolts of the door actuator of the main landing gear (MLG), inspections to determine whether serrations are fully mated, and various follow-on corrective actions. It also would have provided operators the option of terminating all of the requirements of the AD either by replacing the aluminum rib fitting with a new steel rib fitting, or by modifying the rib fitting assembly and performing various follow-on actions. The requirements of that proposed AD were intended to prevent an airplane from landing with one MLG partially extended. Since the issuance of the NPRM, the Federal Aviation Administration (FAA) has issued separate rulemaking to require these same actions. Accordingly, the proposed rule is withdrawn.