AMC1 SPO.IDE.H.145 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 record, with reference to a timescale, the list of parameters in Table 1 and Table 2, as applicable.
(c) The parameters recorded by the FDR should meet, as far as practicable, the performance specifications (designated ranges, sampling intervals, accuracy limits and minimum resolution in read-out) defined in EUROCAE ED-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 parameters — All helicopters
|
No* |
Parameter |
|---|---|
|
1 |
Time or relative time count |
|
2 |
Pressure altitude |
|
3 |
Indicated airspeed |
|
4 |
Heading |
|
5 |
Normal acceleration |
|
6 |
Pitch attitude |
|
7 |
Roll attitude |
|
8 |
Manual radio transmission keying CVR/FDR synchronisation reference |
|
9 |
Power on each engine: |
|
9a |
Free power turbine speed (NF) |
|
9b |
Engine torque |
|
9c |
Engine gas generator speed (NG) |
|
9d |
Flight crew compartment power control position |
|
9e |
Other parameters to enable engine power to be determined |
|
10 10a 10b |
Rotor: Main rotor speed Rotor brake (if installed) |
|
11 |
Primary flight controls — Pilot input and/or control output position (if applicable) |
|
11a |
Collective pitch |
|
11b |
Longitudinal cyclic pitch |
|
11c |
Lateral cyclic pitch |
|
11d |
Tail rotor pedal |
|
11e |
Controllable stabilator (if applicable) |
|
11f |
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 as 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 number depicted in EUROCAE ED-112.
Table 2: FDR parameters — 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 |
Gear box oil temperature Main gear box oil temperature Intermediate gear box oil temperature |
|
17c |
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 |
Not used (selected Mach) |
|
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 number depicted in EUROCAE ED-112.