Summary
This action withdraws a notice of proposed rulemaking (NPRM) that proposed superseding an existing airworthiness directive (AD), applicable to certain McDonnell Douglas transport category airplanes. That action would have required inspection for proper installation, damage, or abrasion of the power feeder cables and trough installations; proper installation of caterpillar grommets in the lightening holes; and repair if necessary. The proposed rule also would have required modification of the power feeder cable installation and added airplanes to the applicability of the existing AD. Since the issuance of the NPRM, the FAA has received new data indicating that the applicability and required actions of the existing AD adequately address the unsafe condition that is identified in the existing AD. Accordingly, the proposed AD is withdrawn.