Aviation Mechanic - General, Airframe, and Powerplant › III. Powerplant › Task I. Engine Fuel and Fuel Metering Systems

AM.III.I.R1

Risk management

Adjusting a turbine engine fuel control.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Powerplant p. 2-41
Chapter 2: Engine Fuel & Fuel Metering Systems › Fuel Control Maintenance › Fuel System Operation
determine the approximate amount of trimming required. If a trim is necessary, the engine fuel control is then adjusted to obtain the target turbine discharge pressure Pt7 or EPR on the gauge. Immediately following the fuel control adjustment, the tachometer…
Aviation Maintenance Technician Handbook - Powerplant p. 2-33
Chapter 2: Engine Fuel & Fuel Metering Systems › Turbine Engine Fuel System—General Requirements › Turbine Fuel Controls
Most turbine fuel controls are quickly going to the FADEC type of control. This electronically controlled fuel control is very accurate in scheduling fuel by sensing many of the engine parameters. Regardless of the type, all fuel controls accomplish essentially ... specific engine. These variables affect the amount of thrust that an engine produces for a given fuel flow. By sensing these parameters, the fuel control has a clear picture of what is happening in the engine and can adjust fuel…
Aviation Maintenance Technician Handbook - Powerplant p. 2-34
Chapter 2: Engine Fuel & Fuel Metering Systems › Turbine Engine Fuel System—General Requirements › Hydromechanical/Electronic Fuel Control
basic hydromechanical fuel control was the next step in the development of turbine engine fuel controls. Generally, this type of system used a remotely located EEC to adjust the fuel flow. A description of a typical system is explained…