Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, and -40 Series Airplanes and C-9 Airplanes
This document corrects information in an existing airworthiness directive (AD) that applies to certain McDonnell Douglas Model DC-9-10, -20, -30, and -40 series airplanes and C-9 airplanes. That AD currently requires modification of the spoiler control system, and installation of protective interlock box assemblies in the spoiler circuit. This document corrects the affected models specified in the "Applicability" of the AD. This correction is necessary to ensure that the appropriate affected airplane models are identified correctly.