PC-24 windshield-relay AD takes effect 20 October as Jet Access opens at JWN

Two items from the 8 October NBAA daily matter for charter desks this week: an FAA airworthiness directive on certain Pilatus PC-24s that becomes effective on 20 October, and a new private terminal at Nashville’s John C. Tune Airport (JWN) sized for the largest purpose-built business jets.

FAA AD 2026-17-11, published 15 September 2026 and effective 20 October 2026, covers certain Pilatus Model PC-24 airplanes. It was prompted by a solid-state relay in the left-hand windshield heating system that can allow reverse current when switched off. In a dual-generator failure, that fault can stop emergency windshield heat from working when it is needed, with a risk of lost outside visibility in icing.

The AD requires modification and replacement of the affected relay (part number 974.20.01.234) with the serviceable part (974.20.01.235), aligned with EASA AD 2026-0008. Operators have 16 months from the FAA effective date — roughly through 20 February 2028 — to finish the work. The FAA estimates 168 U.S.-registered airplanes are affected. For about 125 of them, labor and parts for relay plus cables are estimated at $1,457 per airplane; for about 43, relay-only work is estimated at $244.50. Some costs may be covered under warranty.

Applicability is serial-number and service-bulletin dependent (including MSN ranges tied to Pilatus SB 30-004 or SB 30-006 at original issue). Treat the Federal Register text and the operator’s maintenance records as the source of truth — not this brief. For brokers, the desk question is simple: if a trip quote depends on an affected PC-24, ask whether the AD work is done or scheduled before winter IFR legs in icing.

Jet Access has opened a new private terminal at Nashville’s John C. Tune Airport after a ribbon-cutting around 30 September 2026. Coverage carried in the NBAA daily and trade outlets describes hangar space on the order of 22,000–22,500 square feet, an executive lounge, offices, and conference space, with capacity framed for large-cabin types including the Bombardier Global 7500 and Gulfstream G800.

JWN sits west of downtown Nashville and works as a BNA reliever. Contour Aviation already has an FBO there, and Atlantic Aviation has been building another terminal and hangar package at the field. For RFQs into Middle Tennessee, that means more than one FBO path at the reliever — confirm which ramp and which operator base the quote actually uses.

The 8 October digest also carried several side items worth a calendar or supplier pin:

• Burke Lakefront (BKL), Cleveland: advocates reported more than 1,000 signatures in support of keeping the airport open, citing more than $195 million in direct annual economic activity at risk if it closes.
• NBAA-BACE (20 Oct): Stephanie Goetz is billed to host a Flying Safety Awards gathering on the Horizon Stage.
• Honda HA-480: the FAA proposed special conditions for high-altitude operation (up to 47,000 feet), focused on the pressurized fuselage and high-altitude loads.
• NTSB: a final report on a Cessna 421 forced landing in Kentucky attributed the accident to misfueling with Jet A instead of 100LL — a fuel-grade control reminder for piston and turbine mixed ramps.

Put PC-24 AD status on the same checklist as MEL and crew duty when that type is in the quote stack. Use the Federal Register AD and the operator’s logbook answer, not a digest headline. Treat the new JWN terminal as another Nashville routing option, and name the FBO on the proposal so the client is not surprised at the curb.

This brief is an original rewrite of facts reported in the NBAA Daily email of 8 October 2026 and the primary or trade sources those items point to: FAA Federal Register AD 2026-17-11 (91 FR 58364), GlobalAir.com on the PC-24 AD, Aviation Week / Jet Access / Avi-Go on the JWN terminal, SaveBurkeLakefront.org and NBAA advocacy materials on BKL, AVweb on the Honda HA-480 proposal, and WPSD-TV / NTSB coverage of the Cessna 421 misfueling report. It is not a verbatim reproduction of those publications.