Does NCO.IDE.A.125 require a separate instrument for each parameter, or can combined instruments be used?

The text does not specify; it only requires 'a means of measuring and displaying' each listed parameter, so the regulation does not mandate separate instruments.

What instruments and associated equipment must an aeroplane have when it is operated under IFR according to NCO.IDE.A.125?

It must be equipped with a means of measuring and displaying magnetic heading, time in hours/minutes/seconds, barometric altitude, indicated airspeed, vertical speed, turn and slip, attitude, stabilised heading, outside air temperature, and Mach number whenever speed limitations are expressed in terms of Mach number; a means of indicating when the supply of power to the gyroscopic instruments is not adequate; and a means of preventing malfunction of the airspeed indicating system due to condensation or icing.

Under NCO.IDE.A.125, is a Machmeter required for all IFR operations in non-commercial aeroplanes?

No. A means of measuring and displaying Mach number is required only whenever speed limitations are expressed in terms of Mach number.

What specific requirement does NCO.IDE.A.125 impose regarding the airspeed indicating system?

It requires a means of preventing malfunction of the airspeed indicating system due to condensation or icing.

Is an outside air temperature indicator required for all IFR flights under NCO.IDE.A.125?

Yes, a means of measuring and displaying outside air temperature is required for aeroplanes operated under IFR.

What is the applicability date of Regulation (EU) 2019/1384 as referenced in NCO.IDE.A.125?

The section text does not state an applicability date; it only cites the regulation number.

NCO.IDE.A.125 Operations under IFR - flight and navigational instruments and associated equipment

Q: For IFR operations, what does NCO.IDE.A.125 require in relation to the power supply for gyroscopic instruments?

It requires a means of indicating when the supply of power to the gyroscopic instruments is not adequate.

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NCO.IDE.A.125 Operations under IFR – flight and navigational instruments and associated equipment

Regulation (EU) 2019/1384

Aeroplanes operated under IFR shall be equipped with:

(a) a means of measuring and displaying the following:

(1) magnetic heading;

(2) time in hours, minutes and seconds;

(3) barometric altitude;

(4) indicated airspeed;

(5) vertical speed;

(6) turn and slip;

(7) attitude;

(8) stabilised heading;

(9) outside air temperature; and

(10) Mach number, whenever speed limitations are expressed in terms of Mach number;

(b) a means of indicating when the supply of power to the gyroscopic instruments is not adequate; and

Details

Source-Title: NCO.IDE.A.125 Operations under IFR - flight and navigational instruments and associated equipment View latest amendments

Erulesid: ERULES-1963177438-13598 Compare versions

Domain: Air operations

Applicabilitydate: 25 August, 2013

Entryintoforcedate: 25 August, 2013

Regulatorysource: Regulation (EU) 2019/1384 Navigate

Regulatorysubject: Part-NCO

Typeofcontent: IR (Implementing rule)

Origin: EASA

Category: EAR

NCO.IDE.A.125 Operations under IFR – flight and navigational instruments and associated equipment

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