SWITCH, AUDIO CNTRL (P/N 990-0104-004) - As Removed

The 990-0104-004 is an audio control switch for aircraft cockpit communication systems. This panel-mounted component selects between radio transmit/receive and intercom audio channels, enabling crew communication management during flight operations. Typically integrated into avionics audio control panels on general and corporate aircraft, the switch routes audio signals according to pilot input.

Installation requires verification against the aircraft's Illustrated Parts Catalog and compliance with applicable maintenance documentation. The switch conforms to RTCA DO-214 MOPS standards for aviation audio systems.

What is the SWITCH, AUDIO CNTRL (P/N 990-0104-004)?

The 990-0104-004 is an audio control switch for aircraft cockpit communication systems. This panel-mounted component selects between radio transmit/receive and intercom audio channels, enabling crew communication management during flight operations.

Is the 990-0104-004 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The SWITCH, AUDIO CNTRL is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 990-0104-004 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 990-0104-004?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.