Certification Memoranda (CM) Cat. 1

Rotor Drive System - Gearbox TBO Development

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

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

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

Vibration Health Monitoring: Prioritisation of Maintenance Alerts

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

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