SECTION	Title	Time
§ 27.1589	§ 27.1589 Loading information.	July 7, 2025
Appendix A	Appendix A to Part 27—Instructions for Continued Airworthiness	July 7, 2025
Appendix B	Appendix B to Part 27—Airworthiness Criteria for Helicopter Instrument Flight	July 7, 2025
Appendix C	Appendix C to Part 27—Criteria for Category A	July 7, 2025
Appendix D	Appendix D to Part 27—HIRF Environments and Equipment HIRF Test Levels	July 7, 2025
§ 27.1	§ 27.1 Applicability.	July 24, 2026
§ 27.2	§ 27.2 Special retroactive requirements.	July 24, 2026
§ 27.21	§ 27.21 Proof of compliance.	July 24, 2026
§ 27.25	§ 27.25 Weight limits.	July 24, 2026
§ 27.27	§ 27.27 Center of gravity limits.	July 24, 2026
§ 27.29	§ 27.29 Empty weight and corresponding center of gravity.	July 24, 2026
§ 27.31	§ 27.31 Removable ballast.	July 24, 2026
§ 27.33	§ 27.33 Main rotor speed and pitch limits.	July 24, 2026
§ 27.45	§ 27.45 General.	July 24, 2026
§ 27.49	§ 27.49 Performance at minimum operating speed.	July 24, 2026