FAA Orders Brake Fixes for Pilatus Planes to Prevent Lockups
Published Date: 4/24/2026
Rule
Summary
Pilatus PC-12/47G airplane owners need to replace both left and right brake pipe assemblies because a faulty valve can cause brake lockup. This fix stops unsafe brake problems and bans using the bad parts. The rule kicks in on May 11, 2026, so pilots and operators should act fast to keep flying safe without unexpected costs.
Analyzed Economic Effects
1 provisions identified: 0 benefits, 1 costs, 0 mixed.
Mandatory Brake Pipe Replacement
If you own or operate a Pilatus Model PC-12/47G airplane, you must replace both the left- and right-hand brake pipe assemblies because a faulty brake shuttle valve can cause brake lockup. The AD is effective May 11, 2026; the FAA estimates parts cost $5,000 plus 3 work-hours at $85/hour ($255) for a total of $5,255 per airplane, and the rule affects 13 U.S.-registered airplanes (total estimated cost $68,315). The rule also prohibits installing the affected parts, and the manufacturer may cover some costs under warranty.
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