Summary
This document reopens the comment period and proposes to revise an earlier proposed airworthiness directive (AD), which would have required inspecting the main passenger/crew door locking mechanism on certain Jetstream Aircraft Limited (JAL) Jetstream Models 3101 and 3201 airplanes to ensure that a taper pin is installed, and installing a taper pin if not already installed. Since publication of that proposal, the Federal Aviation Administration (FAA) has re-examined various service difficulty reports on the affected airplanes, and determined that this is still a valid safety issue, and that a modification to the passenger door warning system should also be included. Since this action adds an additional modification that was not originally proposed, the FAA is allowing additional time for the public to comment. The proposed actions are intended to prevent the inability to open the passenger/crew door or failure of the passenger door warning system, which, if not detected and corrected, could result in passenger injury if emergency evacuation is needed.