---
title: "SPO.IDE.H.125 Operations under IFR – flight and navigational instruments and associated equipment — Part-SPO · Avioverse"
description: "Helicopters operated under IFR shall be equipped with: a means of measuring and displaying:"
url: "https://avioverse.aero/regulations/easa/air-ops/part-spo/subpart-d/spo-ide-h-125"
---

# SPO.IDE.H.125 Operations under IFR – flight and navigational instruments and associated equipment

ANNEX VIII (Part-SPO) · Regulation (EU) No 965/2012 · EAR revision 27 Mar 2026

IR Implementing rule

## SPO.IDE.H.125 Operations under IFR – flight and navigational instruments and associated equipment

Helicopters operated under IFR shall be equipped with:

(a) a means of measuring and displaying:

(1) magnetic heading,

(2) time in hours, minutes and seconds,

(3) barometric altitude,

(4) indicated airspeed,

(5) vertical speed,

(6) slip,

(7) attitude,

(8) stabilised heading, and

(9) outside air temperature;

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

(c) whenever two pilots are required for the operation, an additional separate means of displaying:

(1) barometric altitude,

(2) indicated airspeed,

(3) vertical speed,

(4) slip,

(5) attitude, and

(6) stabilised heading;

(d) a means of preventing malfunction of the airspeed indicating system required by (a)(4) and (c)(2) due to condensation or icing;

(e) an additional means of measuring and displaying attitude as a [standby](https://avioverse.aero/glossary/easa/standby) instrument; and

(f) the following for complex motor-powered helicopters:

(1) an alternate source of static pressure; and

(2) a chart holder in an easily readable position that can be illuminated for [night](https://avioverse.aero/glossary/easa/night) operations.

IR · SPO.IDE.H.125 — Regulation (EU) No 965/2012 · Regulation (EU) 2019/1384 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

GM Guidance material

## GM1 SPO.IDE.H.125(a)(3) Operations under IFR – flight and navigational instruments and associated equipment

ALTIMETERS

Altimeters with counter drum-pointer or equivalent presentation are considered to be less susceptible to misinterpretation for helicopters operating above 10 000 ft.

GM · GM1 SPO.IDE.H.125(a)(3) — Regulation (EU) No 965/2012 · ED Decision 2014/018/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

AMC Acceptable means of compliance

## AMC1 SPO.IDE.H.125(a)(9) Operations under IFR – flight and navigational instruments and associated equipment

MEANS OF DISPLAYING OUTSIDE AIR TEMPERATURE

(a) The means of displaying outside air temperature should be calibrated in degrees Celsius.

(b) In the case of helicopters with a maximum certified [take-off mass](https://avioverse.aero/glossary/easa/take-off-mass) (MCTOM) below 2 000 kg, calibration in degrees Fahrenheit is acceptable, when such unit is used in the AFM.

(c) The means of displaying outside air temperature may be an air temperature indicator that provides indications that are convertible to outside air temperature.

AMC · AMC1 SPO.IDE.H.125(a)(9) — Regulation (EU) No 965/2012 · ED Decision 2014/018/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

AMC Acceptable means of compliance

## AMC1 SPO.IDE.H.125(c) Operations under IFR — flight and navigational instruments and associated equipment

MULTI-PILOT OPERATIONS

Two pilots should be considered to be required by the operation if multi-pilot operations are required by one of the following:

(a) the AFM;

(b) the operations manual.

AMC · AMC1 SPO.IDE.H.125(c) — Regulation (EU) No 965/2012 · ED Decision 2022/012/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

AMC Acceptable means of compliance

## AMC1 SPO.IDE.H.125(f)(2) Operations under IFR – flight and navigational instruments and associated equipment

CHART HOLDER

An acceptable means of compliance with the chart holder requirement would be to display a pre-composed chart on an [electronic flight bag (EFB)](https://avioverse.aero/glossary/easa/electronic-flight-bag).

AMC · AMC1 SPO.IDE.H.125(f)(2) — Regulation (EU) No 965/2012 · ED Decision 2014/018/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

[All rules in SUBPART D: INSTRUMENTS, DATA AND EQUIPMENT](https://avioverse.aero/regulations/easa/air-ops/part-spo/subpart-d)

Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.