Regulacje i polityka gospodarcza · 27/10/1999

Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes

This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all McDonnell Douglas Model MD-11 series airplanes, that currently requires a one-time inspection to detect discrepancies at certain areas around the entry light connector of the sliding ceiling panel above the forward passenger doors, and repair, if necessary. That AD was prompted by a report indicating that damaged electrical wires were found above the forward passenger doors due to flapper panels moving inboard and chafing the electrical wire assemblies of this area. For certain airplanes, this action would require the installation or modification of a flapper door ramp deflector on the forward entry drop ceiling structure. For certain other airplanes, this action would require inspection of the wire assembly support installation for evidence of chafing, and corrective actions, if necessary; and modification of the subject area. The actions specified by the proposed AD are intended to prevent such chafing, which could result in an electrical fire in the passenger compartment.