uAvionix AV-20-S Gains Approval as Clock Replacement

The FAA this week approved the uAvionix AV-20-S multi-function display as an advanced time-keeping device equivalent and hence a replacement for the sweep-second-hand clocks of old. The unit is considered a replacement for clocks in Part 23, Class I and II IFR aircraft per advisory circular AC 20-94A. The new AV-20-S meets the requirements of Part 91.205 (d)(6). The Non-Required Safety Enhancing Equipment (NORSEE) certification has also been updated to reflect the approval.

uAvionix said in a news release, “In addition to a clock replacement, the uAvionix AV-20-S adds a suite of in-flight information to nearly any panel. Designed to seamlessly fit in a standard 2 1/4-inch round instrument opening, the AV-20-S offers a standby attitude indicator, angle of attack, bus voltage, slip/skid Indication, outside air temperature, density altitude, G meter, and more—all protected with a 30-minute internal battery backup for uninterrupted function in the event of power loss.”

AV-20-S is in the family of uAvionix panel displays alongside the AV-30-C, the company’s 3 1/8-inch certified display, which is installable as a primary attitude indicator or directional gyro. Both models are also compatible as a control head for uAvionix’s mode S ADS-B transponder, tailBeaconX.