Stage: Final Publications

Regulatory Agency Final Publications

FAA AC_20-154A Guide for Developing a Receiving Inspection System for Aircraft Parts and Materials

This AC provides guidance and
information for developing a receiving inspection system and for incorporation into a
person’s existing receiving inspection system to help prevent the introduction of
unairworthy articles into inventories. The aim is to establish sufficient traceability to
determine that the article(s) were manufactured under Title 14 of the Code of Federal
Regulations (14 CFR) part 21, were previously determined to be airworthy under 14 CFR
part 43, and were produced to established industry or U.S. Government standards or
accepted foreign standards.

AC_20_105C Reciprocating Engine Power-Loss Accident Prevention and Trend Monitoring

This AC discusses the circumstances surrounding engine power-loss accidents. It provides recommendations on how, through individual effort and consideration, those accidents can be prevented. This AC provides generic data collection charts to assist with setting up a reciprocating engine trend monitoring program to improve and track both engine and related system reliability over the recommended operating life of the engine. The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing
requirements under the law or agency policies.

FAA AC_43-11_CHG_1 Reciprocating Engine Overhaul Terminology and Standards

This advisory circular (AC) has been revised to update references to Title 14 of
the Code of Federal Regulations (14 CFR) part 91. The contents of this document do not have
the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

EASA Opinion No 03/2024 Implementation of the regulatory needs in support of the SESAR deployment | Introduction of ACAS Xa for operations and PBN specifications for oceanic operations in the single European sky (SES)

This Opinion proposes regulatory amendments pertaining to two different subject matters in support of operations in the single European sky (SES): the use of Airborne Collision Avoidance System (ACAS) Xa and the harmonised use of performance-based navigation (PBN) specifications for oceanic and remote continental operations.

The proposed amendments introducing the use on a voluntary basis of ACAS Xa within the SES, based on the transposition of related ICAO Standards and Recommended Practices (SARPs), are expected to increase safety, and to improve harmonisation.

The proposed amendments on PBN would allow the use in the SES of ICAO RNAV 10 and RNP 4 navigation specifications, which have been specifically designed to support operations in en-route oceanic and remote continental airspace. The use of RNAV 10 and RNP 4 instead of RNAV 5, which is the only specification recognised for use in SES, is expected to preserve the required level of safety through more stringent aircraft requirements against the loss of the navigation function (continuity failure). In this regard, the proposed amendments would keep the aircraft performance compatible with the air traffic services (ATS) and communication, navigation, and surveillance (CNS) services available in such airspace.