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

    CAA ORS9 Decision No. 1

    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 CAA.

    (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 CAA.

    Table 1

    FDR — all helicopters

    No*

    Parameter

    1

    Time or relative time count

    2

    Pressure altitude

    3

    Indicated airspeed or calibrated airspeed

    4

    Heading

    5

    Normal acceleration

    6

    Pitch attitude

    7

    Roll attitude

    8

    Manual radio transmission keying CVR/FDR synchronisation reference

    9

    9a

    9b

    9c

    9d

    9e

    Power 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

    10b

    Rotor:

    Main rotor speed

    Rotor brake (if installed)

    11

    11a

    11b

    11c

    11d

    11e

    11f

    Primary 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

    12

    Hydraulics low pressure (each system should be recorded)

    13

    Outside air temperature

    18

    Yaw rate or yaw acceleration

    20

    Longitudinal acceleration (body axis)

    21

    Lateral acceleration

    25

    Marker beacon passage

    26

    Warnings — 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.

    27

    Each navigation receiver frequency selection

    37

    Engine 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

    14

    AFCS mode and engagement status

    15

    Stability augmentation system engagement (each system should be recorded)

    16

    Main gear box oil pressure

    17

    17a

    17b

    17c

    Gear box oil temperature

    Main gear box oil temperature

    Intermediate gear box oil temperature

    Tail rotor gear box oil temperature

    19

    Indicated sling load force (if signals readily available)

    22

    Radio altitude

    23

    23a

    23b

    23c

    Vertical deviation — the approach aid in use should be recorded.

    ILS glide path

    MLS elevation

    GNSS approach path

    24

    24a

    24b

    24c

    Horizontal deviation — the approach aid in use should be recorded.

    ILS localiser

    MLS azimuth

    GNSS approach path

    28

    DME 1 & 2 distances

    29

    29a

    29b

    29c

    29d

    29e

    29f

    Navigation data

    Drift angle

    Wind speed

    Wind direction

    Latitude

    Longitude

    Ground speed

    30

    Landing gear or gear selector position

    31

    Engine exhaust gas temperature (T4)

    32

    Turbine inlet temperature (TIT/ITT)

    33

    Fuel contents

    34

    Altitude rate (vertical speed) — only necessary when available from cockpit instruments

    35

    Ice detection

    36

    36a

    36b

    36c 36d

    36e

    Helicopter health and usage monitor system (HUMS)

    Engine data

    Chip detector

    Track timing

    Exceedance discretes

    Broadband average engine vibration

    38

    38a 38b

    Selected barometric setting — to be recorded for helicopters where the parameter is displayed electronically

    Pilot

    Co-pilot

    39

    Selected altitude (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    40

    Selected speed (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    41

    Selected Mach (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    42

    Selected vertical speed (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    43

    Selected heading (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    44

    Selected flight path (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    45

    Selected decision height (all pilot selectable modes of operation) — to be recorded for the helicopters where the parameter is displayed electronically

    46

    EFIS display format

    47

    Multi-function/engine/alerts display format

    48

    Event marker

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