Content last revised: 2009/12/01
(Ref. CAR 605.33)
(amended 2009/12/01)
| Parameters | Range | Accuracy sensor input to DFDR read-out | Sampling interval (in seconds) | Resolution read-out Footnote 4 |
|---|---|---|---|---|
| Time (GMT or Frame Counter) (range 0 to 4095, sampled 1 per frame) | 24 hrs | ±0.125% per hour | 0.25 (1 per 4 seconds) | 1 sec. |
| Altitude | -1,000 ft. to maximum certificated altitude of aircraft | ±100 ft. to ±700 ft. (See table 1 in CAN-TSO-C51a) | 1 | 5 ft. to 35 ft. Footnote 1 |
| Airspeed | 50 KIAS to VSO and VSO to 1.2 VD | ±5%, ±3% | 1 | 1kt |
| Heading | 360° | ±2° | 1 | 0.5° |
| Normal (vertical) acceleration | -3g to +6g | ±1% of max range excluding datum error of ±5% | 8 | 0.01g |
| Pitch attitude | ±75° | ±2° | 1 | 0.5° |
| Roll attitude | ±180° | ±2° | 1 | 0.5° |
| Radio transmitter keying | On/off (discrete) | 1 | ||
| Thrust/power on each engine | Full range forward | ±2% | 1 (per engine) | 0.2% Footnote 2 |
| Trailing edge flap or cockpit control selection | Full range or each discrete position | ±3° or as pilot's indicator | 0.5 | 0.5% Footnote 2 |
| Leading edge flap on or cockpit control selection | Full range or each discrete position | ±3° or as pilot's indicator | 0.5 | 0.5% Footnote 2 |
| Thrust reverser position | Stowed, in transit, and reverse (discrete) | 1 (per 4 seconds per engine) | ||
| Ground spoiler position/speed brake selection | Full range or each discrete position | ±2% unless higher accuracy required | 1 | 0.2% Footnote 2 |
| Marker beacon passage | 1 | |||
| Autopilot engagement | discrete | 1 | ||
| Longitudinal acceleration | ±1g | ±1.5% max. range excluding datum error of ±5% | 4 | 0.01g |
| Pilot input and/or surface position-primary controls (Pitch, Roll, Yaw) Footnote 3 | Full range | ±2° unless higher accuracy uniquely required | 1 | 0.2% Footnote 2 |
| Lateral acceleration | ±1g | ±1.5% max. range excluding datum error of ±5% | 4 | 0.01g |
| Pitch trim position | Full range | ±3% unless higher accuracy uniquely required | 1 | 0.3% Footnote 2 |
| Glideslope deviation | ±400 Microamps | ±3% | 1 | 0.3% Footnote 2 |
| Localizer deviation | ±400 Microamps | ±3% | 1 | 0.3% Footnote 2 |
| AFCS mode and engagement status | discrete | 1 | ||
| Radio altitude | -20 ft. to 2,500 ft. | ±2 ft. or ±3% whichever is greater below 500 ft. and ±5% above 500 ft | 1 | 1 ft. + 5% above 500 ft. Footnote 2 |
| Master warning | discrete | 1 | ||
| Main gear squat switch status | discrete | 1 | ||
| Angle of attack (if recorded directly) | As installed | As installed | 1 | 0.3% Footnote 2 |
| Outside air temperature or total air temperature | -50°C to +90°C | ±2°C | 1 | 0.3°C |
| Hydraulics, each system low pressure | discrete | 0.5 | 0.5% Footnote 2 | |
| Groundspeed | As installed | Most accurate system installed (IMS equipped a/c only) | 1 | 0.2% Footnote 2 |
| If additional recording capacity is available, recording of the following parameters is recommended. The parameters are listed in order of significance: | ||||
| Drift Angle | When available. As installed. | As installed | 4 | |
| Wind Speed and Direction | When available. As installed. | As installed | 4 | |
| Latitude and Longitude | When available. As installed. | As installed | 4 | |
| Brake pressure/Brake pedal position | As installed | As installed | 1 | |
Additional engine parameters
| Parameters | Range | Accuracy sensor input to DFDR read-out | Sampling interval (in seconds) | Resolution read-out Footnote 4 |
|---|---|---|---|---|
| EPR N1 N2 EGT |
As installed As installed As installed |
As installed As installed As installed |
1 (per engine) 1 (per engine) 1 (per engine) |
|
| EGT | As installed | As installed | 1 (per engine) | |
| Throttle Lever Position | As installed | As installed | 1 (per engine) | |
| Fuel Flow | As installed | As installed | 1 (per engine) |
TCAS
| Parameters | Range | Accuracy sensor input to DFDR read-out | Sampling interval (in seconds) | Resolution read-out Footnote 4 |
|---|---|---|---|---|
| TA RA Sensitivity level (as selected by crew) |
As installed As installed As installed |
As installed As installed As installed |
1 1 2 |
|
| GPWS (ground proximity warning system). | Discrete | 1 | ||
| Landing gear or gear selector position | Discrete | 0.25 (1 per 4 seconds) | ||
| DME 1 and 2 Distance | 0 - 200 NM | As installed | 0.25 | 1 mile |
| Nav 1 and 2 Frequency Selection | Full range | As installed | 0.25 |