A broken screen on an Avidyne glass cockpit in a twin-piston aircraft is a significant maintenance issue. The Avidyne system, such as the Entegra or Vantage displays, is a highly integrated avionics suite. Therefore, replacing a screen is not a simple swap but a methodical process that requires careful diagnosis, strict adherence to manufacturer procedures, and comprehensive system testing.
DIAGNOSING THE FAILURE
Before any hardware is replaced, the most important step is to accurately diagnose the root cause of the screen failure. A blank, flickering, or cracked screen may be a symptom of a larger problem. For instance, a blank screen could be a power supply issue, a problem with the aircraft’s electrical system, or a fault in a connected component, not the display unit itself. A certified avionics technician will:
- Retrieve Fault Codes: The Avidyne system has a built-in diagnostic function that logs fault codes. These codes provide a clear picture of which component is failing, whether it’s a display unit (MFD/PFD), a remote sensor, or a communication issue.
- Perform Electrical Checks: The technician will use a multimeter to check the voltage at the display unit’s power connections and inspect the wiring harness for signs of chafing, corrosion, or loose pins. A stable power supply is critical for the reliable operation of any glass cockpit.
This diagnostic process is an example of the principle of consistency. By following the same rigorous steps every time, we ensure we accurately identify the problem and avoid costly, unnecessary repairs.
THE REPLACEMENT PROCEDURE
Once a diagnosis confirms that the display unit itself is the problem, the replacement process begins. This is not a a simple “plug and play” procedure. The principle of authority is paramount here; all work must be performed by a certified avionics shop with technicians trained on Avidyne systems.
- System De-energization: The aircraft’s electrical system is completely shut down to prevent electrical shorts or damage during the process.
- Panel Access: The instrument panel is carefully disassembled to gain access to the display unit’s mounting hardware and wiring harness.
- Removal and Installation: The display is unbolted, and the numerous cables connecting it to the rest of the avionics suite are carefully disconnected. The new unit is then mounted and reconnected according to the Avidyne Installation Manual. This step is meticulous, as improper wiring can lead to system failures.
- Configuration and System Testing: The new unit must be configured with the correct aircraft-specific settings and loaded with the latest software and databases. A series of rigorous ground and functional checks are then performed to ensure all systems—engine monitoring, navigation, and flight instruments—are working correctly.
OUR COMMITMENT TO EXPERTISE
We have built our reputation on social proof from a long history of satisfied customers across California, Arizona, and Nevada who trust us with their twin-piston aircraft. Our unique selling proposition is our status as the only 24/7 maintenance center in the area. When a critical glass cockpit issue, like a broken display, grounds your aircraft, our around-the-clock availability means we can begin the diagnostic and repair process immediately, minimizing your aircraft’s downtime and getting you back in the air with confidence.
FOOTNOTES
- Avidyne. “Entegra Integrated Flight Display System Installation Manual.” https://www.avidyne.com/manual-guides/
- Aviation Consumer. “Avidyne Vantage: Retrofit PFD and MFD.” https://aviationconsumer.com/avionics/avidyne-vantage-retrofit-pfd-and-mfd/
- Cirrus Owners and Pilots Association. “When the Avidyne EX5000 fails. Replace with?” https://forum.cirruspilots.org/t/when-the-avidyne-ex5000-fails-replace-with/95966
- Avweb. “Glass Panel Upkeep.” https://avweb.com/features/glass-panel-upkeep/
The Aero Center is located at William J. Fox Airfield KWJF | Lancaster, CA. Contact us at 209.885.6950 for questions or appointments.