Skip to content

A gradual release of Avioverse begins in October 2026. Request early access →

AMC1.1 CAT.IDE.H.190 Flight data recorder

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

AMCAcceptable means of compliance

AMC1.1 CAT.IDE.H.190 Flight data recorder

OPERATIONAL PERFORMANCE REQUIREMENTS FOR HELICOPTERS HAVING AN MCTOM OF MORE THAN 3 175 KG AND FIRST ISSUED WITH AN INDIVIDUAL CofA ON OR AFTER 1 JANUARY 2016 AND BEFORE 1 JANUARY 2023

(a)The operational performance requirements for flight data recorders (FDRs) should be those laid down in EUROCAE Document ED-112 (Minimum Operational Performance Specification for Crash Protected Airborne Recorder Systems) dated March 2003, including amendments No 1 and No 2, or any later equivalent standard produced by EUROCAE.

(b)The FDR should, with reference to a timescale, record:

(1)the parameters listed in Table 1 below;

(2)the additional parameters listed in Table 2 below, when the information data source for the parameter is used by helicopter systems or is available on the instrument panel for use by the flight crew to operate the helicopter; and

(3)any dedicated parameters related to novel or unique design or operational characteristics of the helicopter as determined by the Agency.

(c)The FDR parameters should meet, as far as practicable, the performance specifications (range, sampling intervals, accuracy limits and minimum resolution in read-out) defined in the operational performance requirements and specifications of EUROCAE Document 112, including amendments No 1 and No 2, or any later equivalent standard produced by EUROCAE.

(d)FDR systems for which some recorded parameters do not meet the performance specifications of EUROCAE Document ED-112 may be acceptable to the Agency.

Table 1 FDR — all helicopters

No*Parameter
1Time or relative time count
2Pressure altitude
3Indicated airspeed or calibrated airspeed
4Heading
5Normal acceleration
6Pitch attitude
7Roll attitude
8Manual radio transmission keying CVR/FDR synchronisation reference
9 9a 9b 9c 9d 9ePower on each engine Free power turbine speed (NF) Engine torque Engine gas generator speed (NG) Flight crew compartment power control position Other parameters to enable engine power to be determined
10 10a 10bRotor: Main rotor speed Rotor brake (if installed)
11 11a 11b 11c 11d 11e 11fPrimary flight controls — Pilot input and/or control output position (if applicable) Collective pitch Longitudinal cyclic pitch Lateral cyclic pitch Tail rotor pedal Controllable stabiliser (if applicable) Hydraulic selection
12Hydraulics low pressure (each system should be recorded)
13Outside air temperature
18Yaw rate or yaw acceleration
20Longitudinal acceleration (body axis)
21Lateral acceleration
25Marker beacon passage
26Warnings — a discrete should be recorded for the master warning, gearbox low oil pressure and stability augmentation system failure. Other ‘red’ warnings should be recorded where the warning condition cannot be determined from other parameters or from the cockpit voice recorder.
27Each navigation receiver frequency selection
37Engine control modes

* The number in the left hand column reflects the serial numbers depicted in EUROCAE Document ED-112

Table 2 Helicopters for which the data source for the parameter is either used by helicopter systems or is available on the instrument panel for use by the flight crew to operate the helicopter

No*Parameter
14AFCS mode and engagement status
15Stability augmentation system engagement (each system should be recorded)
16Main gear box oil pressure
17 17a 17b 17cGear box oil temperature Main gear box oil temperature Intermediate gear box oil temperature Tail rotor gear box oil temperature
19Indicated sling load force (if signals readily available)
22Radio altitude
23 23a 23b 23cVertical deviation — the approach aid in use should be recorded. ILS glide path MLS elevation GNSS approach path
24 24a 24b 24cHorizontal deviation — the approach aid in use should be recorded. ILS localiser MLS azimuth GNSS approach path
28DME 1 & 2 distances
29 29a 29b 29c 29d 29e 29fNavigation data Drift angle Wind speed Wind direction Latitude Longitude Ground speed
30Landing gear or gear selector position
31Engine exhaust gas temperature (T4)
32Turbine inlet temperature (TIT/ITT)
33Fuel contents
34Altitude rate (vertical speed) — only necessary when available from cockpit instruments
35Ice detection
36 36a 36b 36c 36d 36eHelicopter health and usage monitor system (HUMS) Engine data Chip detector Track timing Exceedance discretes Broadband average engine vibration
38 38a 38bSelected barometric setting — to be recorded for helicopters where the parameter is displayed electronically Pilot Co-pilot
39Selected altitude (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
40Selected speed (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
41Selected Mach (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
42Selected vertical speed (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
43Selected heading (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
44Selected flight path (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
45Selected decision height (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically
46EFIS display format
47Multi-function/engine/alerts display format
48Event marker

* The number in the left hand column reflects the serial numbers depicted in EUROCAE Document ED-112

AMC — Regulation (EU) No 965/2012 · ED Decision 2016/012/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026

All rules in SUBPART D: INSTRUMENTS, DATA, EQUIPMENT

Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

Ask Metis about AMC1.1 CAT.IDE.H.190 Flight data recorder →

Metis opens with Avioverse in October 2026 · request early access.