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ARP4754B Guidelines Development Civil Aircraft

Decoding ARP4754A: In-Depth Processes and Key Outputs in the Guidelines for the Development of Civil Aircraft and Systems

Applicable Development Guidelines

The development guidelines and standards are applicable at various levels, encompassing aircraft, systems, equipment, HW/SW levels, and the interconnections between the associated documentation

General Development & Specific Development Processes

An examination of the comprehensive development process, covering planning, development, and integral processes. A review of specific activities such as Planning, Aircraft/System Development, Safety Assessment and FDAL/IDAL Allocation, Requirements Capture, Requirement Validation, Configuration Management, Process Assurance, Implementation & Verification

Example of System Development Lifecycle

An exploration of the system development lifecycle, encompassing the deliverables at each stage review (PR, PDR, CDR, TRR, TRAR, CR) and the procedures involved in the stage review process

FDAL IDAL Allocation

F/IDAL allocation according to ARP4754A

Safety Assessment according to ARP4754

The basics of the Safety aspects related to standard ARP4754, used by a company to show compliance with certification requirements and in meeting its own internal safety standards.

Development Assurance Level Assignment

The assignment process for the Development Assurance Level of an aircraft/system function or item depends on the severity classification of Failure Conditions considering the possible independence between development processes that can …

Independence Attributes

Independence attributes allow the safety engineer to have sufficient confidence that the likelihood of a common mode Error is minimized between two or more members in proportion to the severity of the Failure Condition Classification. Two types of …

FDAL IDAL Allocation

Safety assessment process for Airborne Systems Certification

Aircraft Level Safety Assessment

The concept of Aircraft Level Safety Assessment is introduced and the tools to accomplish this task are outlined.

Safety Assessment Guidelines

A set of guidelines is provided for conducting an industry accepted safety assessment consisting of Functional Hazard Assessment (FHA), Preliminary System Safety…

Safety Analysis Methods

The safety analysis methods needed to conduct the safety assessment are also introduced, including the Fault Tree Analysis (FTA), Dependence Diagram (DD), etc.

Methods in context

The relationships between all the analytical methods are explained and exemplified, considering their adequacy for different systems, environments and work approach.

FDAL IDAL Allocation

Cybersecurity in Aerospace. SRA, verification & continued airworthiness

Security Scope Definition (SSD)

Definition of the assets of the system, the security perimeter and the security environment.

Security Risk Assessment

Based on the security scope and the Failure Conditions from a Functional Hazard Assessment (FHA).

Security Verification

Airworthiness Security is verified based on the following tests: Security Requirements Tests, Security Robustness Tests, and Vulnerability Tests.

Continued Airworthiness

During the continued airworthiness of the aircraft, consider security industry standards, perform a Change Impact Analysis and vary the effort depending on rework size.

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