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Regulations last checked for updates: Dec 15, 2025
Title 14 - Aeronautics and Space last revised: Nov 03, 2025
All Titles
Title 14
Chapter I
Part 121
Subpart AA - Subpart AA—Continued Airworthiness and Safety Improvements
§ 121.1101 - Purpose and definition.
§ 121.1103 - [Reserved]
§ 121.1105 - Aging airplane inspections and records reviews.
§ 121.1107 - Repairs assessment for pressurized fuselages.
§ 121.1109 - Supplemental inspections.
§ 121.1111 - Electrical wiring interconnection systems (EWIS) maintenance program.
§ 121.1113 - Fuel tank system maintenance program.
§ 121.1115 - Limit of validity.
§ 121.1117 - Flammability reduction means.
§ 121.1119 - Fuel tank vent explosion protection.
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