Precooler Heat Exchanger Repair & Overhaul
FAA & EASA certified precooler heat exchanger repair and overhaul.
About the Precooler Heat Exchanger
The precooler heat exchanger cools hot engine bleed air before it enters downstream pneumatic and air conditioning systems, using cooler fan-air or ram air as the heat sink. Mounted in the engine strut or nacelle, this air-to-air core lowers bleed temperature to protect ducting, valves, and the air conditioning packs and to meet system temperature limits, with a bypass or regulating valve managing the cooling-air flow. As a thin-finned, brazed core operating at high temperature, it is prone to fatigue and thermal-cycle cracking, internal and external corrosion, fin fouling and erosion, and braze-joint or tube leakage that reduces effectiveness and allows cross-leakage. Pressure testing, leak detection, core cleaning, and repair or re-coring restore thermal performance.
Our Precooler Heat Exchanger Repair Capability
QTC repairs and overhauls precooler heat exchanger components to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our engineers — including former OEM heat transfer 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 Precooler Heat Exchanger Parts We Service
Click a part number for repair details and to request a quote.
| Part number | Make | Model |
|---|---|---|
| 183680-1-1 | Gulfstream | GII |
| 183680-1-1 | Gulfstream | GIII |
| 183680-2-1 | Gulfstream | GII |
| 183680-2-1 | Gulfstream | GIII |
| 183680-3-1 | Gulfstream | GII |
| 183680-3-1 | Gulfstream | GIII |
| 183680-3-2 | Gulfstream | GII |
| 183680-3-2 | Gulfstream | GIII |
| 183680-4-1 | Gulfstream | GII |
| 183680-4-1. | Gulfstream | GIII |
Frequently Asked Questions
Does QTC repair precooler heat exchanger components?
Yes. QTC repairs and overhauls precooler heat exchanger components under our FAA & EASA Part 145 approvals. Our catalog lists 10 precooler heat exchanger part numbers. Request a quote to confirm capability and turnaround.
What aircraft use the precooler heat exchanger?
In our catalog, precooler heat exchanger part numbers appear on Gulfstream. See the full parts list below.
What is involved in precooler heat exchanger 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 Precooler Heat Exchanger Repair
Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.