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  5. § 25.1155
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14 CFR · Part 25

14 CFR § 25.1155

Reverse thrust and propeller pitch settings below the flight regime.

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Read in Subpart E
Part 25 Contents
  • Special Federal Aviation Regulation No. 13
  • Special Federal Aviation Regulation No. 109
  • Subpart A: General
  • Subpart B: Flight
  • Subpart C: Structure
  • Subpart D: Design and Construction
  • Subpart E: Powerplant
  • Subpart F: Equipment
  • Subpart G: Operating Limitations and Information
  • Subpart H: Electrical Wiring Interconnection Systems (EWIS)
  • Subpart I: Special Federal Aviation Regulations
  • Appendix A to Part 25
  • Appendix B to Part 25
  • Appendix C to Part 25
  • Appendix D to Part 25
  • Appendix E to Part 25
  • Appendix F to Part 25
  • Appendix H to Part 25: Instructions for Continued Airworthiness
  • Appendix I to Part 25: Installation of an Automatic Takeoff Thrust Control System (ATTCS)
  • Appendix J to Part 25: Emergency Evacuation
  • Appendix K to Part 25: Extended Operations (ETOPS)
  • Appendix L to Part 25: HIRF Environments and Equipment HIRF Test Levels
  • Appendix M to Part 25: Fuel Tank System Flammability Reduction Means
  • Appendix N to Part 25: Fuel Tank Flammability Exposure and Reliability Analysis
  • Appendix O to Part 25: Supercooled Large Drop Icing Conditions

Each control for reverse thrust and for propeller pitch settings below the flight regime must have means to prevent its inadvertent operation. The means must have a positive lock or stop at the flight idle position and must require a separate and distinct operation by the crew to displace the control from the flight regime (forward thrust regime for turbojet powered airplanes).

Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.

Primary Source

  • Official Source (14 CFR · Part 25)