Honeywell Cabin Temperature Controller — P/N 6600423-2 (alt P/N 625734-2)
Condition: Serviceable — Inspected, with FAA Form 8130-3.
Cabin temperature controller for the Bombardier Learjet environmental control system (ECS), manufactured by Honeywell. It regulates cabin/cockpit air temperature by processing temperature-sensor inputs and driving the temperature-control valve to hold the selected zone temperature. On the Learjet 60 it serves the temperature-controller position per AMM 21-60-04, working with the related temperature-control valve torque motor (6600423-8) and control indicator.
Cross-references to OEM P/N 625734-2. Applicable to the Learjet 55 / 60 series.
Supplied in serviceable condition, inspected, with an FAA Form 8130-3 airworthiness approval tag for return-to-service traceability.
Details
- Manufacturer: Honeywell
- P/N: 6600423-2 · Alt P/N: 625734-2
- Type: Cabin temperature controller (ECS)
- Aircraft: Bombardier Learjet 55 / 60 (60XR)
- Condition: Serviceable (Inspected) · Traceability: FAA Form 8130-3 included
- 30 Day Return Policy
Buyer is responsible for verifying part-number applicability and effectivity against their aircraft before installation.

