That's why you want to make sure it's not a connectivity issue. If you just go ahead and send the 55X to S-Tec, which could indeed be defective, it'll be north of $1500 flat fee. If they are too long they will prevent the 55X from sliding all the way into the tray and make proper connections.Īlso check that the tray is mounted close enough to the radio rack that the connectors secure before the faceplate bottoms out against the radio rack. Installation Instructions - Aircraft/STC specific. These screws are I believe #2 and are screwed inward from the outside way in the back of the tray. Flight Control Computers updated with the new capacitors will be marked as Mod B1. The backplate is what the connectors are secured to. 2) I've seen this scenario before: There are four screws that secure the entire backplate to the tray. Sometimes these plastic backshell screw-holes get stripped and when the unit is slid into the tray and locked, the connectors push out because they're not secured to the tray properly. The rear connectors on a 55X are made of plastic, there are screws going into them from the tray side. Refer to the current DFC-90 Installation Manual for the removal of the Switches.A couple of things come to mind for you to check. In fact, the F/D_A/P switches are removed during the DFC-90 upgrade. That is not an issue in the DFC-90 installation. If your concern is the present 55X does not have the Flight Director Option & Switches. Control Wheel Steering: Hand-fly aircraft and then let the autopilot take over to hold the existing turn rate and vertical speed. System 55X benefits: High Performance: Fully IFR-capable, with nav and glide slope intercepts that make it ideal for approaches. G et a quote for a S-TEC 55X in your aircraft. Your Installing agency will be able to ascertain the proper operation of the existing motors.Ĭirrus aircraft: If you are planning a DFC-90 Upgrade from an S-Tec-55X. High-performance, two-axis autopilot for reducing pilot workload in IMC through all modes of flight. In these cases the motors may require service and/or replacement. This test may find that the motor require too much voltage to begin to respond to autopilot commands. The DFC90 utilizes the existing Roll Trim Motor, Pitch Servo, and Pitch Trim motors that are presently controlled by the S-Tec 55XĪs part of the DFC90 Upgrade/Installation an operation test is required to be performed on the Motors Operational ability. (Informational only - shops must check the aircraft and equipment for confirmation)ĭo you have a Cirrus Entegra Equipped EX5000 (PFD and MFD) Series and an installed S-TEC55X and want to upgrade to the DFC90? DFC90 upgrade in Cirrus S-Tec 55X Autopilot installed aircraft
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