Qualification, Service, and Use of Crewmembers and Aircraft Dispatchers; Related Aircraft Amendment

This rule allows air carriers to seek a deviation from the flight simulation training device (FSTD) requirements for related aircraft proficiency checks. As a result, this rule will eliminate an inconsistency that currently permits carriers that have obtained FAA approval to modify the FSTD requirements for related aircraft differences training, but not for corresponding proficiency checks. In doing so, it corrects an inadvertent omission from the Qualification, Service, and Use of Crewmembers and Aircraft Dispatchers final rule.