INDICATOR DUAL TACH (P/N 22-280-04) - As Removed

The 22-280-04 is a dual tachometer indicator for turbine helicopter cockpits. This panel-mounted gauge displays two independent RPM channels simultaneously using dual needles—typically engine (N2) and rotor (Nr) speeds. Pilots monitor power management and rotor performance in real-time on a single instrument.

Installation requires matching the correct range and input specifications to your aircraft systems per the maintenance manual. FAA TSO authorization may apply depending on your helicopter model and certification requirements.

What is the INDICATOR DUAL TACH (P/N 22-280-04)?

The 22-280-04 is a dual tachometer indicator for turbine helicopter cockpits. This panel-mounted gauge displays two independent RPM channels simultaneously using dual needles—typically engine (N2) and rotor (Nr) speeds.

Is the 22-280-04 calibrated and ready to install?

Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The INDICATOR DUAL TACH is available in: As Removed. Contact us to confirm calibration status for your selected condition.

Can the 22-280-04 be used as a direct replacement in my aircraft?

The INDICATOR DUAL TACH is designed as a form-fit-function replacement. Verify the part number against your aircraft's Illustrated Parts Catalog (IPC) and instrument panel layout to confirm compatibility before ordering.

Do you offer instrument exchange programs for the 22-280-04?

Yes, we offer core exchange programs on select instruments. Send your unserviceable unit and receive a discount on the replacement. Call (904) 998-9101 or submit an RFQ to check exchange availability for the 22-280-04.