---
kind: "section"
citation: "14 C.F.R. § 29.1143"
title: "14"
number: "29.1143"
heading: "Engine controls."
url: "https://uscodex.org/cfr/14/29.1143"
---

# §29.1143. Engine controls.

- (a) There must be a separate power control for each engine.
- (b) Power controls must be arranged to allow ready synchronization of all engines by—
  - (1) Separate control of each engine; and
  - (2) **Simultaneous control of all engines.**
- (c) Each power control must provide a positive and immediately responsive means of controlling its engine.
- (d) Each fluid injection control other than fuel system control must be in the corresponding power control. However, the injection system pump may have a separate control.
- (e) If a power control incorporates a fuel shutoff feature, the control must have a means to prevent the inadvertent movement of the control into the shutoff position. The means must—
  - (1) Have a positive lock or stop at the idle position; and
  - (2) **Require a separate and distinct operation to place the control in the shutoff position.**
- (f) For rotorcraft to be certificated for a 30-second OEI power rating, a means must be provided to automatically activate and control the 30-second OEI power and prevent any engine from exceeding the installed engine limits associated with the 30-second OEI power rating approved for the rotorcraft.

## Notes

### Amendments

[Amdt. 29-26, 53 FR 34219, Sept. 2, 1988, as amended by Amdt. 29-34, 59 FR 47768, Sept. 16, 1994]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.

### Source

Source: Docket No. 5084, 29 FR 16150, Dec. 3, 1964, unless otherwise noted.

### Amendments

[Amdt. 29-26, 53 FR 34219, Sept. 2, 1988, as amended by Amdt. 29-34, 59 FR 47768, Sept. 16, 1994]