Stage: Final Publications

Regulatory Agency Final Publications

FAA AC 20-152A Development Assurance for Electronic Hardware

This advisory circular (AC) describes an acceptable means, but not the only means, for
showing compliance with the applicable airworthiness regulations for the electronic
hardware aspects of airborne systems and equipment for type certification or Technical
Standard Order (TSO) authorization. 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. This document
is intended only to provide clarity to the public regarding existing requirements under
the law or agency policies. However, if you use the means described in the AC, you
should follow it in all applicable respects unless alternate means or deviations are
proposed and accepted by the FAA.
This AC recognizes EUROCAE ED-80, Design Assurance Guidance for Airborne
Electronic Hardware, dated April 2000, and RTCA DO-254, Design Assurance
Guidance for Airborne Electronic Hardware, dated April 19, 2000.
This AC describes when to apply EUROCAE ED-80/RTCA DO-254, and it
supplements EUROCAE ED-80/RTCA DO-254 with additional guidance and
clarification for the development of custom devices, including the use of commercial
off-the-shelf (COTS) intellectual property (IP), for the use of COTS devices, and for the
development of circuit board assemblies (CBA).
The additional guidance and clarification are provided in the form of objectives. The
applicant is expected to describe the process and activities to satisfy the objectives of
this AC.
Note: EUROCAE ED-80 is hereafter referred to as “ED”; RTCA DO-254 is hereafter
referred to as “DO.” Where the notation “ED-80/DO-254” appears in this document,
the referenced documents are recognized as being equivalent.
This AC does not address the Single Event Effects (SEE) aspects or the assessment of
the hardware susceptibility to SEE. However, the Plan for Hardware Aspects of
Certification may still be used to document the certification considerations for Single
Event Effects.

FAA AC 20-152A

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FAA AC 00-72

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Opinion No 08/2022 Helicopter emergency medical service performance and public interest sites

The objective of this Opinion is to modernise the European Union’s (EU) aviation regulatory framework applicable to helicopter emergency services and medical services.
The Opinion proposes revised requirements with regard to the following:

  • flights to/from public interest sites (PISs) located in congested areas;
  • helicopter emergency medical service (HEMS) flights by day or by night in relation to equipment, training, operating minima, and operating site/hospital site features;
  • HEMS requirements for high-altitude operations; and
  • a new HEMS concept to cover mountain operations and rescue operations, other than search and rescue (SAR) operations.

The proposals put forward in this Opinion are expected to increase safety, and foster efficiency and proportionality while keeping the economic impact on HEMS operators at a minimum.

ED Decision 2022/019/R Large aeroplane tyre pressure monitoring | Helicopter ditching and water impact occupant survivability

CS-26 Issue 4 
Commission Implementing Regulation (EU) 2022/1254 was adopted on 19 July 2022.
This Regulation amends Annex I (Part-26) to Commission Regulation (EU) 2015/640 ‘Additional airworthiness specifications for operations’ with respect to the following two topics that EASA proposed through Opinion No 01/2022:
1.    Large aeroplane tyre pressure monitoring (RMT.0586);
2.    Helicopter ditching and water impact occupant survivability (RMT.0120).
The objective of this Decision is to support the application of the amendments introduced into Part-26 by providing the means to comply with them as well as the related guidance material. In order to achieve this objective, this Decision amends CS-26.

cs-26_issue_4

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FAA Order 1800_56W National Flight Standards Work Program Guidelines

This order restates current Flight Standards Service (FS) policy for
personnel to use as they develop and execute annual surveillance work programs; incorporates
organizational changes and policy division changes; and updates previous guidance work
activities, National Transportation Safety Board (NTSB) recommendations, Inspector General
(IG) recommendations, and congressional mandates.