Summary
We propose to supersede Airworthiness Directive (AD) 2011-10- 01, for all Dassault Aviation Model FALCON 7X airplanes. AD 2011-10-01 currently requires repetitive functional tests of the ram air turbine (RAT) heater and repair if necessary. Since we issued AD 2011-10-01, we received a revision of an airworthiness limitations items (ALI) document, which introduces new and more restrictive maintenance requirements and airworthiness limitations for airplane structures and systems. This proposed AD would require revising the maintenance or inspection program to incorporate new maintenance requirements and airworthiness limitations. We are proposing this AD to prevent reduced structural integrity and reduced control of these airplanes due to the failure of system components.