A Close Up Of A Heavily-Oxidized Boeing 747 Brake World Aero
A Close Up Of A Heavily-Oxidized Boeing 747 Brake, likely caused by liberal over-spraying of de-icing fluid.

See A Boeing 747 Brakes Oxidation Comparison

The proof is in the brake comparison.

Aircraft brakes can receive the most damage from liberal application of de-icing fluid. Phil Randell, managing director of wheels and brakes repair, overhaul, sales and management company World Aero, says in a recent press release, "The process involves covering the aircraft with de-icing fluid in order to minimize the risk of missed areas, meaning that wheels and brakes are often sprayed directly rather than avoided as they should be."

Using the Boeing 747-400 carbon brakes as an example, Randell shows the difference between brakes with typical oxidation wear compared to brake wear with extreme oxidation, with one cause likely to be de-icing fluid damage.

Randell estimates the Boeing 747-400 brake removal and heat sink exchange could cost anywhere from $30,000 to $50,000 in addition to the "premature removal and workshop costs."

You can read MRO-Network.com's full press-release review Better De-Icing Training And Knowledge Needed To Reduce Brake MRO.

If your aircraft brakes need a look due to this issue, you can see featured wheel and brake repair shops or check out the MRO Links searchable directory of suppliers for deicing products and services.

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