Fan/ Sensor unit assembly Repair & Overhaul
FAA & EASA certified fan/ sensor unit assembly repair and overhaul.
About the Fan/ Sensor unit assembly
A fan/sensor unit assembly is a combined component in the sensing and air management system that integrates a small aspirating or sampling fan with a temperature sensing element, drawing a representative air sample across the sensor so the control system reads accurate cabin or duct temperature with minimal lag. The fan ensures continuous airflow over the sensing element, improving response and accuracy of temperature feedback used for air conditioning control. Operating with continuous rotation and electrical excitation, common degradation includes motor bearing wear, increased vibration and noise, motor winding or brush deterioration, sensor element drift or open/short circuits, contamination of the air path reducing sampling flow, and connector and wiring fatigue. These conditions drive functional and resistance testing, fan rebuild, sensor calibration, and overhaul.
Our Fan/ Sensor unit assembly Repair Capability
QTC repairs and overhauls fan/ sensor unit assembly components to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our engineers — including former OEM sensors & switches specialists — perform teardown, inspection, cleaning, component replacement, functional and leak testing, and certification, and develop repairs for rejected and beyond-economic-repair (BER) hardware.
All Fan/ Sensor unit assembly Parts We Service
Click a part number for repair details and to request a quote.
| Part number | Make | Model |
|---|---|---|
| 601R51577-1 | Bombardier | CRJ200 |
| 601R51577-1 | Bombardier | CRJ700 |
| 601R51577-27 | Bombardier | CRJ200 |
| 601R51577-27 | Bombardier | CRJ700 |
| 601R51577-3 | Bombardier | CRJ200 |
| 601R51577-3 | Bombardier | CRJ700 |
Frequently Asked Questions
Does QTC repair fan/ sensor unit assembly components?
Yes. QTC repairs and overhauls fan/ sensor unit assembly components under our FAA & EASA Part 145 approvals. Our catalog lists 6 fan/ sensor unit assembly part numbers. Request a quote to confirm capability and turnaround.
What aircraft use the fan/ sensor unit assembly?
In our catalog, fan/ sensor unit assembly part numbers appear on Bombardier. See the full parts list below.
What is involved in fan/ sensor unit assembly repair and overhaul?
Our process typically includes incoming inspection, disassembly, cleaning, non-destructive evaluation, repair or replacement of worn elements, functional/leak testing, and certification with the appropriate airworthiness release.
Request a Quote for Fan/ Sensor unit assembly Repair
Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.