Summary
This action withdraws a supplemental notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to all Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. That action would have superseded an existing AD that currently requires repetitive inspections to find cracks, fractures, or corrosion of each carriage spindle of the left and right outboard mid-flaps; and corrective action, if necessary. That action would also have mandated the previously optional overhaul or replacement of the carriage spindles, which would have ended the repetitive inspections required by the existing AD. Since the issuance of the supplemental NPRM, the Federal Aviation Administration (FAA) has issued another AD that adequately addresses the identified unsafe condition. Accordingly, the proposed rule is withdrawn.