Stage: Final Publications

Regulatory Agency Final Publications

EASA CM proposed_cm-prop-001 Proposed Certification Memorandum providing guidance for compliance with CS-E 515 (a) for Engine Critical Parts

The purpose of this Certification Memorandum is to provide specific guidance for applicants when
demonstrating compliance with CS-E 515 (a) for Engine Critical Parts. This CM provides guidance concerning
the recognition of non-hazardous features (an area, a region, or a zone whose localised failure will not result
in a Hazardous Engine Effect) within an Engine Critical Part and how such features may be credited within
the Engineering Plan of CS-E 515 (a).

EASA proposed_certification_memorandum_cm-sa-001_-_net_safety_benefit_-_issue_1

Historically, the safety assessment of applications for airworthiness approval have focussed on risks
associated with malfunctioning or failing systems and equipment installed on the aircraft. In this process, the
operational use of the systems and equipment was assessed, but generally, no credit was provided for the
operational safety benefits that the installation of such systems and equipment would provide.
The purpose of this Certification Memorandum (CM) is to provide an approach to the demonstration of
compliance to certain CS 23 and CS 27 specifications that is in line with reference standard guidance as
adapted to installation of system/ equipment that provide operational safety benefit. This is achieved by
introducing credits for systems or equipment that provide operational safety benefits in the determination
of the Development Assurance Level (DAL)1
The intent of the Net Safety Benefit policy is to facilitate the introduction of new, safety enhancing
technologies in the current, fleets that have been shown to provide operational safety benefits so as to
improve the overall safety performance of the operation.
It should be noted that whilst the FAA’s NORSEE policy and EASA’s Net Safety benefit policy aim to achieve a
similar goal, the scope, applicability and processes of both policies are different. In part this is due to differing
regulatory environments. For example; in the EASA system, the so called ‘field approvals’ do not exist. EASA
does however accept ‘standard changes’ under CS-STAN. The Net Safety Benefit policy is limited to
applications for airworthiness approval through a Major Change to an existing Type Certificate or a
Supplemental Type Certificate. The policy does not apply to changes covered by CS-STAN or to Minor
Changes.
The guidance provided in this CM is non-binding and provides complementary information and guidance with
the aim to complement the current CS and associated AMC.

FAA Notice N_8900.584 How to Document Regulatory Compliance Actions and Enforcement Actions in SAS, including Specific Instructions for Passenger Interference Cases in the EIS

This notice provides a consistent process to document Regulatory
Compliance Actions (CA) and Enforcement Actions in the Safety Assurance System (SAS) and
provides an update on available tools and reports to track these actions. This notice also provides
specific instructions for documenting passenger interference cases in SAS and the Enforcement
Information System (EIS). This notice focuses on the locations within the automation where
information is entered to create quality records.

FAA AC_91-92 Pilot’s Guide to a Preflight Briefing

This AC provides an
educational roadmap for the development and implementation of preflight self-briefings,
including planning, weather interpretation, and risk identification/mitigation skills. Pilots
adopting these guidelines will be better prepared to interpret and utilize real-time weather
information before departure and en route, in the cockpit, via technology like Automatic
Dependent Surveillance-Broadcast (ADS-B) and via third-party providers. This AC
provides guidance for required preflight actions under Title 14 of the Code of Federal
Regulations (14 CFR) part 91, § 91.103, which states, “Each pilot in command shall,
before beginning a flight, become familiar with all available information concerning that
flight.” This AC will also encourage pilots to utilize Flight Service in a consultative
capacity, when needed. 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.

FAA AC_91-92

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