Subject: Certification of Part 23
Airplanes for Flight in Icing Conditions
Date: 9/26/02
Initiated By: ACE-100
AC No: 23.1419-2B
Change:
1. PURPOSE. This advisory circular (AC) sets forth an acceptable means, but not the
only means, of demonstrating compliance with the ice protection requirements in Title 14
of the Code of Federal Regulations (14 CFR) part 23. The Federal Aviation
Administration (FAA) will consider other methods of demonstrating compliance that an
applicant may elect to present. This material is neither mandatory nor regulatory in
nature and does not constitute a regulation.
2. CANCELLATION. AC 23.1419-2A, Certification of Part 23 Airplanes for Flight in
Icing Conditions, dated August 19, 1998, is canceled.
3. APPLICABILITY. The guidance provided here applies to the approval of airplane
ice protection systems for operating in the icing environment defined by 14 CFR part 25,
Appendix C. The guidance should be applied to new Type Certificates (TCs),
Supplemental Type Certificates (STCs), and amendments to existing TCs for airplanes
under Part 3 of the Civil Aviation Regulations (CAR) and part 23, for which approval
under the provisions of § 23.1419 is desired.
4. RELATED REGULATIONS AND DOCUMENTS.
a. Regulations. By their adoption in Amendment 23-14, which shows their
requirements are directly related, §§ 23.929, 23.1309, and 23.1419 are applicable to a
part 23 airplane icing certification program regardless of the certification basis for the
basic airplane; however, for those airplanes certificated in accordance with Part 3 of the
CAR and part 23 through Amendment 23-13, the application of these sections may be
limited to the equipment being used for ice protection. Some systems that were
previously approved on the airplane may need to be modified to improve their reliability
when those systems are utilized as part of that airplane's icing approval.
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