---
kind: "section"
citation: "14 C.F.R. § 23.2405"
title: "14"
number: "23.2405"
heading: "Automatic power or thrust control systems."
url: "https://uscodex.org/cfr/14/23.2405"
---

# §23.2405. Automatic power or thrust control systems.

- (a) An automatic power or thrust control system intended for in-flight use must be designed so no unsafe condition will result during normal operation of the system.
- (b) Any single failure or likely combination of failures of an automatic power or thrust control system must not prevent continued safe flight and landing of the airplane.
- (c) Inadvertent operation of an automatic power or thrust control system by the flightcrew must be prevented, or if not prevented, must not result in an unsafe condition.
- (d) Unless the failure of an automatic power or thrust control system is extremely remote, the system must—
  - (1) Provide a means for the flightcrew to verify the system is in an operating condition;
  - (2) Provide a means for the flightcrew to override the automatic function; and
  - (3) **Prevent inadvertent deactivation of the system.**

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704, Pub. L. 113-53, 127 Stat. 584 (49 U.S.C. 44704) note.

### Source

Source: Doc. No. FAA-2015-1621, Amdt. 23-64, 81 FR 96689, Dec. 30, 2016, unless otherwise noted.