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DFC90 upgrade in Cirrus S-Tec 55X Autopilot installed aircraft

(Informational only - shops must check the aircraft and equipment for confirmation)

Do you have a Cirrus Entegra Equipped EX5000 (PFD and MFD) Series and an installed S-TEC55X; and want to upgrade to the DFC90?

The DFC90 utilizes the existing Roll Trim Motor, Pitch Servo, and Pitch Trim motors that are presently controlled by the S-Tec 55X

As part of the DFC90 Upgrade/Installation an operation test is required to be performed on the Motors Operational ability.
This test may find that the motor require too much voltage to begin to respond to autopilot commands.
In these cases the motors may require service and/or replacement.  

Your Installing agency will be able to ascertain the proper operation of the existing motors.

Cirrus aircraft: If you are planning a DFC-90 Upgrade from an S-Tec-55X.  If your concern is the present 55X does not have the Flight Director Option & Switches.

That is not an issue in the DFC-90 installation.  In fact, the F/D_A/P switches are removed during the DFC-90 upgrade.

Refer to the current DFC-90 Installation Manual for the removal of the Switches.

Shops/Pilots purchasing used DFC90s for install should consider the following: 

PFD must have MOD55; this can be seen on the TSO Label on the chassis of the PFD.

DFC90s for Piper PA46 are not interchangeable for Cirrus, and vis-versa, (the DFC90 can be sent in for the aircraft update upgrade at a substantial repair cost; your Avidyne dealer will need to quote the cost).

PFDs without MOD55 (this is hardware that allows the PFD to talk to the DFC90), used DFC90s do not cover the cost of the MOD55 (your dealer will provide you the quote). 

- however, the new DFC90 purchased from your Avidyne Dealer will cover the cost of the MOD55 upgrade.

- New DFC90's have special Entegra warranty cost, if your Entegra's are out-of-warranty, email [email protected] with your shop's details and the new DFC90 details for the quote.