Document ID: chunk:federal_register_of_legislation:F2025C00050:body:0:p130
Version: federal_register_of_legislation:F2025C00050
Segment Type: other
Provision Reference: 
Character Range: 445311–448714

1.               DFE4.1 – Start and stop gas turbine engine
Perform pre-start and after-start checks.
 1.               DFE4.2 – Starts and stops engine
Comply with manufacturer's limitations and report deviations when appropriate.
 1.               DFE4.3 – Operate gas turbine engine on the ground and in the air
        1.        extract, interpret and apply engine performance and limitations information;
        2.        manage gas turbine engine on the ground and in the air.
 2.               DFE4.4 – Manage abnormal and emergency actions applicable to gas turbine engine
        1.        identify and confirm abnormal or emergency situation affecting a gas turbine engine;
        2.        control aircraft;
        3.         perform abnormal or emergency rectification or shutdown action.

 1.                     Range of variables
        1.        activities are performed in accordance with published procedures;
        2.        day VFR in variable weather conditions;
        3.         approved aircraft fitted with gas turbine engine(s);
        4.        variable temperatures and environmental conditions.

 2.                     Underpinning knowledge of the following:
        1.        the make and model of the engine applicable to the aircraft flown;
        2.        where the make and model of the engine are found;
        3.         major characteristics of the engine;
        4.        purpose of the engine air intake system;
        5.        purpose of inlet guide vanes in a gas turbine engine;
        6.          method of measuring thrust (power) of the engine being used;
        7.        main components of all gas turbine engines;
        8.        principles of operation of a centrifugal compressor;
        9.          principles of operation of an axial flow compressor;
       10.          principles of operation of a bypass fan engine;
       11.         primary method of preventing air leakage between a compressor and engine internal compartments in a gas turbine engine;
       12.          purpose of the stator blades in an axial flow compressor;
       13.      specific purpose of the stator blade at the last stage of a gas turbine engine;
       14.        uses of bleed air on the engine being operating;
       15.        the section of a gas turbine engine bleed air is normally taken;
       16.        consequences of a bleed air valve being stuck open;
       17.        the detrimental effects that may occur when starting a turbine engine using a battery with voltage below the minimum specified in AFM or POH;
       18.          what damage could be caused by a slow or hung start;
       19.         instrument indications and physical symptoms of a hung start;
       20.          hung start procedure;
       21.        hot start procedure;
       22.         likely cause and damage caused by a 'hot start';
       23.       engine instrument indications and physical symptoms of a compressor stall;
       24.         the automatic devices in a gas turbine engine designed to control compressor stalls;
       25.         likely cause of a compressor stall;
       26.         clearing a compressor stall and re-establishing normal engine operations;
(za) engine instrument indications and physical symptoms of a compressor surge;
(zb) location of the sensor for engine temperature measurement in the engine that is being