Summary
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 airplanes. That action would have required installing shield assemblies for power feeder cables in the forward and aft lower cargo compartments, and installing an additional shield for the power feeder cable of the auxiliary power unit in the aft lower cargo compartment. Since the issuance of the NPRM, the Federal Aviation Administration (FAA) has determined that the proposed requirements are included in the requirements of another existing AD; the NPRM does not contain any new requirements beyond those of the existing AD. Accordingly, the proposed rule is withdrawn.