2026-17-11: Windshield/Door Rain/Ice Removal
FAA order 2026-17-11 is an airworthiness directive in force since October 20, 2026. The FAA's subject line: Windshield/Door Rain/Ice Removal. It names Pilatus PC-24: about 199 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: electrical power.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Pilatus Aircraft Ltd
- Models
- PC-24
- On this site
- Pilatus PC-24 199 registered
Dates and paperwork
- In force since
- October 20, 2026
- Published
- September 15, 2026 (signed August 21, 2026)
- Docket
- FAA-2026-4632
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The FAA's summary their words, unchanged
The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. This AD was prompted by a report that a solid-state relay (SSR) used in the left-hand (LH) windshield heating system may allow reverse current flow when in the OFF position. This AD requires modification of the airplane and replacement of the affected SSR with a serviceable part. The FAA is issuing this AD to address the unsafe condition on these products.
The order itself the regulatory text, as published
Show the full text (4,127 characters)
1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2026-17-11 Pilatus Aircraft Ltd.: Amendment 39-23455; Docket No. FAA-2026-4632; Project Identifier MCAI-2026-00036-A. (a) Effective Date This airworthiness directive (AD) is effective October 20, 2026. (b) Affected ADs None. (c) Applicability This AD applies to Pilatus Aircraft Ltd. Model PC-24 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency AD 2026-0008, dated January 15, 2026 (EASA AD 2026-0008). (d) Subject Joint Aircraft System Component (JASC) Code 3040, Windshield/Door Rain/Ice Removal. (e) Unsafe Condition This AD was prompted by a report that a solid-state relay used in the left-hand windshield heating system may allow reverse current flow when in the OFF position. The FAA is issuing this AD to prevent failure of the emergency windshield heat function. The unsafe condition, if not addressed, could result in a failure of the emergency windshield heat function, which could result in the loss of outside visibility. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2026-0008. (h) Exceptions to EASA AD 2026-0008 (1) Where EASA AD 2026-0008 refers to its effective date, this AD requires using the effective date of this AD. (2) This AD does not adopt the "Remarks" section of EASA AD 2026-0008. (i) No Reporting Requirement Although the material referenced in EASA AD 2026-0008 specifies to submit certain information, this AD does not include that requirement. (j) Alternative Methods of Compliance (AMOCs) The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph (k) of this AD and email to: AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office/certificate holding district office. (k) Additional Information For more information about this AD, contact Doug Rudolph, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (816) 329-4059; email: doug.rudolph@faa.gov. (l) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) AD 2026-0008, dated January 15, 2026. (ii) [Reserved] (3) For EASA material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email: ADs@easa.europa.eu; website: easa.europa.eu. You may find this EASA AD on the EASA website at ad.easa.europa.eu. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 1100 Main, Kansas City, MO 64105. For information on the availability of this material at the FAA, call (817) 222-5110. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov. Issued on August 21, 2026. Paul R. Bernado, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2026-18848 Filed 9-14-26; 8:45 am]BILLING CODE 4910-13-P
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 7, 2026. Connections as data: /graph/directive/2026-17-11.json · aircraft systems.