Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Dassault Aviation Model Mystere-Falcon 900 series airplanes. This proposal would require modification of the electrical power installation of the flight data recorder, replacement of the currently installed socket box for ground power with a modified socket box, and performance of checks and tests. This proposal is prompted by reports of the generators shutting down due to an intermittent relay failure of the flight data recorders. The actions specified by the proposed AD are intended to prevent loss of [[Page 3584]] electrical power to the airplane due to generator outage.