RESISTOR THERMOCOUPLE LEAD SPOOL (P/N an-3334-2) - Overhauled

The AN-3334-2 is a resistor thermocouple lead spool that stabilizes circuit resistance in aircraft temperature indication systems. This AN-standard component works with Type J or K thermocouples to match instrument calibration in engine EGT (exhaust gas temperature) and CHT (cylinder head temperature) circuits. The spool installs in-line with thermocouple leads, maintaining accuracy and preventing signal drift.

Verify compatibility with your aircraft's Illustrated Parts Catalog before installation per maintenance manual requirements.

What is the RESISTOR THERMOCOUPLE LEAD SPOOL (P/N an-3334-2)?

The AN-3334-2 is a resistor thermocouple lead spool that stabilizes circuit resistance in aircraft temperature indication systems. This AN-standard component works with Type J or K thermocouples to match instrument calibration in engine EGT (exhaust gas temperature) and CHT (cylinder head temperature) circuits.

Is the an-3334-2 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The RESISTOR THERMOCOUPLE LEAD SPOOL is available in: Overhauled. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the an-3334-2 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 an-3334-2?

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.