Pilatus Owners: Swap That Faulty Relay to Avoid Windshield Woes
Published Date: 5/13/2026
Proposed Rule
Summary
Pilatus PC-24 airplane owners need to fix a windshield heater problem that could cause electrical issues. The FAA wants to replace a faulty part called a solid-state relay to keep flights safe. Comments on this fix are open until June 29, 2026, and the update might cost some time and money but keeps everyone flying worry-free.
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Analyzed Economic Effects
3 provisions identified: 1 benefits, 1 costs, 1 mixed.
Mandatory SSR replacement on PC-24s
If you operate a Pilatus Model PC-24 airplane identified in EASA AD 2026-0008 (dated January 15, 2026), the FAA proposes you must modify the airplane and replace the left-hand windshield heating solid-state relay (SSR) with a serviceable part. This action is required to prevent reverse current flow in the SSR that could cause the emergency windshield heat to fail and lead to loss of outside visibility.
FAA estimated compliance cost and scope
The FAA estimates this proposed AD would affect 168 U.S.-registered Pilatus PC-24 airplanes. The FAA estimates 125 airplanes would require SSR and cable replacement at an estimated cost per airplane of $1,457 (5 work-hours at $85/hour plus $1,032 parts) and 43 airplanes would require SSR replacement at an estimated cost per airplane of $244.50 (2.5 work-hours at $85/hour plus $32 parts), for a combined estimated cost to U.S. operators of $192,638.50.
Possible manufacturer warranty coverage
The FAA notes the manufacturer stated that some costs to comply with the proposed AD may be covered under warranty, which could reduce the out-of-pocket cost for affected operators. Operators should check with the manufacturer about warranty coverage for the SSR replacement.
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