Certification Memoranda (CM) Cat. 1

issue 3 of the certification memo introduces specific guidance for cybersecurity

Issue 2 of the certification memo is not limited to European Light Aircraft

Applicable to Large Aeroplanes

“Non-Hazardous Features of Engine Critical Parts”

Applicable to Large Aeroplanes - NOTE: The CM reference has been corrected from reading “21.A-D-003” (incorrectly used for the publication of the proposed CM) to “21.A-D-004

Helicopter Night Vision Imaging Systems

Electrical Wiring Interconnection System (EWIS) during Engine Certification using CS-E

Incomplete Passenger Cabin

FLARM system installations in CS-23, CS 27 and CS-29 aircraft

Parts Detached from Aeroplanes

Interpretation to 21.A.3B(c)(1) and 21.A.103(a)(2)(i)

Approved Model List Changes

Evaluation of aisle width with respect to seat installations

Development Assurance of Airborne Electronic Hardware

The integrity of nickel powder metallurgy rotating critical parts for gas turbines

Certification, Type Design Definition, Material and Process Qualification for Composite Light Aircraft

Large Aeroplane Evacuation Certification Specifications – Cabin Crew Members Assumed to be On Board

Critical Parts – Lifing Shortfall

The integrity of nickel powder metallurgy rotating critical parts for gas turbines

Completeness and Timely Availability of Instructions for Continued Airworthiness

Engine Time Limited Dispatch (TLD) and Master Minimum Equipment List (MMEL)

Critical Parts – Lifing Shortfall

Determination of an Unsafe Condition for Risk of Rotorcraft Engine In-Flight Shut-Down (IFSD) and Power Loss

Large Aeroplane Evacuation Certification Specifications – Cabin Crew Members Assumed to be On Board

Safety considerations covering External Loads

Completeness and Timely Availability of Instructions for Continued Airworthiness

Additive manufacturing

CS 27/29.865 Safety considerations covering External Loads

Development of OSD for Maintenance Certifying Staff

Large Aeroplane Evacuation Certification Requirements - Cabin Crew Members Assumed to be On Board

Bonded Repair Size Limits in accordance with CS-23, CS-25, CS-27, CS-29 and AMC 20-29

Regulatory Significant Standards Differences for pair CS-25 Amendment 12 vs 14 CFR Part 25 Amendment 1 through 136

Post Certification Actions to Verify the Continued Integrity of Rotorcraft Critical Parts

Certification of airborne systems using Light Amplification by Stimulated Emission of Radiation (LASER) with high energy

Vibration Health Monitoring: Prioritisation of Maintenance Alerts

Rotor Drive System - Gearbox TBO Development

Post Certification Actions to Verify the Continued Integrity of Safety Critical Parts

Turbine Engine Relighting In Flight

Regulatory Significant Standards Differences for pair CS-25 Amendment 12 vs 14 CFR Part 25 Amendment 1 through 136

Application of Standard Fasteners (nuts and bolts) within the scope of CS-VLA, CS-VLR, CS-23, CS-25, CS-27, CS-29, CS-P and CS-E to be used in Critical Installations

Engine Time Limited Dispatch (TLD) and Master Minimum Equipment List (MMEL)

Certification, Type Design Definition, Material and Process Qualification for Composite Light Aircraft

Vibration Health Monitoring: Prioritisation of Maintenance Alerts

Helicopter External Loads Personnel Carrying Device System

Bonded Repair Size Limits in accordance with CS 2x.603 and AMC 20-29

Turbine Engine Relighting In Flight

Type rating determination and minimum syllabus considerations for maintenance certifying staff type rating training in light of Operational Suitability Data requirements

Width of Aisle

Rotorcraft – Oil Low Pressure Warning

Application of CS 25.561 (c)(2) 1·33 ‘Wear and Tear’ Factor - Frequent Removal of Interior Structures

Composite Materials - Shared Databases - Acceptance of Composite Specifications and Design Values Developed using the NCAMP Process

Helicopter External Loads Personnel Carrying Device System

Helicopter Night Vision Image Systems