Airworthiness Directives; Boeing Model 737-200 Series Airplanes Modified in Accordance with Supplemental Type Certificate (STC) ST00969AT

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737-200 series airplanes that requires removal of the existing emergency floor path lighting system and replacement with an FAA-approved emergency floor path lighting system. This amendment is prompted by information indicating that the existing emergency floor path lighting system does not provide adequate lighting and cueing for safe evacuation of the airplane in the event of an emergency. The actions specified by this AD are intended to prevent such inadequate lighting and cueing, which could delay or impede the flight crew and passengers when exiting the airplane during an emergency.