Your Hawker ice protection system

Here are five tips for effectively maintaining your Hawker's TKS anti-ice system for winter conditions:

1. Preflight System Checks

• Before takeoff, inspect the TKS reservoir to ensure it has a sufficient quantity of de-icing fluid, as winter flights often consume more fluid. Conduct a functional check to confirm the system's integrity, as any fluid leaks could reduce effectiveness.

2. Don‘t damage them

• Dents can easily render your TKS panels un-airworthy. So make sure to let the cleaning crew, (even if it’s the FO) know to keep those ladders and belt buckles away from the leading edge.

3. Lets keep it clean

• What are you using to service your TKS reservoir? Ideally, stainless steel or plastic transfer containers are the best choices due to the corrosive nature of the fluid. Recently we’ve seen clogging damage to metering tubes located in the proportioning valves. So stick to the plastic funnel method, a plastic or stainless bug sprayer, as they are ideal.

4. Run it more than you need it. 

• You may think that you’re saving fluid, and thereby saving money by only operating your TKS for the 2 minute prime that the AFM calls for, but those panels like to stay damp. When the panels dry out, the system can have a difficult time coming back to life, membranes can rupture or clog. Run the system through a full cycle at least twice a month, even in the summer months. You’ll have fewer problems overall.

5. Regularly Refill Fluid Reservoirs

• TKS fluid can be used up quickly, especially in prolonged or severe icing. After each flight, refill the reservoir immediately if it’s below recommended levels, and carry spare TKS fluid if permitted for longer winter trips.

Properly maintaining and operating your Hawker’s TKS system during winter flights can significantly enhance safety and aircraft performance in icy conditions.