Mooney M20M Bravo — Supplemental Type Certificate

This document is an Airworthiness Directive (AD) issued by the FAA, specifically addressing issues related to the Precise Flight, Inc. Models SVS I and SVS IA standby vacuum systems. The directive mandates corrective actions to prevent failures or malfunctions of these systems, which could lead to dangerous situations during instrument flight rules (IFR) operations. The AD requires operators to replace the airplane flight manual supplement (AFMS), upgrade the standby vacuum systems to Model VI, and incorporate instructions for continued airworthiness into the maintenance schedule. The directive is a response to reports of failures and a fatal accident linked to improper use of the standby vacuum system. It is crucial for ensuring the safety and reliability of affected aircraft, including various models of Mooney aircraft.

• Effective date of the AD is July 18, 2005.
• Operators must replace the AFMS within 30 days of the effective date.
• Upgrade to Model VI SVS must be completed within one year.
• Estimated cost for AFMS replacement is $65.
• Total estimated cost for Model VI upgrade is $390.