Primary Heat Exchanger Repair & Overhaul
FAA & EASA certified primary heat exchanger repair and overhaul.
About the Primary Heat Exchanger
The primary heat exchanger is the first-stage air-to-air cooler in an air conditioning pack, positioned ahead of the air cycle machine to remove a large portion of the heat from incoming bleed air using ram or fan air as the cooling medium. By pre-cooling the charge air, it reduces the thermal load on the secondary heat exchanger and ACM and improves overall pack efficiency. The brazed plate-fin or tube-and-fin core operates under pressure and significant temperature differentials, making it susceptible to fatigue and thermal-cycle cracking, internal and external corrosion, fin damage and fouling, erosion, and braze-joint or tube leakage. Reduced effectiveness and cross-leakage drive inspection, pressure and leak testing, cleaning, and core repair or replacement.
Our Primary Heat Exchanger Repair Capability
QTC repairs and overhauls primary 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 Primary Heat Exchanger Parts We Service
Click a part number for repair details and to request a quote.
| Part number | Make | Model |
|---|---|---|
| 7110118H01 | Boeing | Boeing 787 |
Frequently Asked Questions
Does QTC repair primary heat exchanger components?
Yes. QTC repairs and overhauls primary heat exchanger components under our FAA & EASA Part 145 approvals. Our catalog lists 1 primary heat exchanger part number. Request a quote to confirm capability and turnaround.
What aircraft use the primary heat exchanger?
In our catalog, primary heat exchanger part numbers appear on Boeing. See the full parts list below.
What is involved in primary 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 Primary Heat Exchanger Repair
Send us your part numbers and condition. Our engineers respond with repair scope, turnaround, and pricing.