375
Federal Aviation Administration, DOT
Pt. 125, App. E
The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-
tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum
rate of reversal. All data recorded must be correlated in time to within one second.
Parameters Range
Accuracy (sensor
input)
Seconds per
sampling interval
Resolution Remarks
43. Additional En-
gine Param-
eters.
As installed ........
As installed ........
Each engine
each second.
2% of full range
Where capacity permits, the
preferred priority is indi-
cated vibration level, N2,
EGT, Fuel Flow, Fuel Cut-
off lever position and N3,
unless engine manufac-
turer recommends other-
wise.
44. Traffic Alert
and Collision
Avoidance Sys-
tem (TCAS).
Discretes ...........
As installed ........
1 ........................
.......................
A suitable combination of
discretes should be re-
corded to determine the
status of-Combined Con-
trol, Vertical Control, Up
Advisory, and Down Advi-
sory. (ref. ARINC Char-
acteristic 735 Attachment
6E, TCAS VERTICAL RA
DATA OUTPUT WORD.)
45. DME 1 and 2
Distance.
0–200 NM .........
As installed ........
4 ........................
1 NM .................
1 mile.
46. Nav 1 and 2
Selected Fre-
quency.
Full range ..........
As installed ........
4 ........................
...........................
Sufficient to determine se-
lected frequency
47. Selected baro-
metric setting.
Full range ..........
±
5% ...................
(1 per 64 sec.) ..
0.2% of full
range.
48. Selected Alti-
tude.
Full range ..........
±
5% ...................
1 ........................
100 ft.
49. Selected
speed.
Full range ..........
±
5% ...................
1 ........................
1 knot.
50. Selected
Mach.
Full range ..........
±
5% ...................
1 ........................
.01.
51. Selected
vertical speed.
Full range ..........
±
5% ...................
1 ........................
100 ft/min.
52. Selected
heading.
Full range ..........
±
5% ...................
1 ........................
1
°
.
53. Selected flight
path.
Full range ..........
±
5% ...................
1 ........................
1
°
.
54. Selected deci-
sion height.
Full range ..........
±
5% ...................
64 ......................
1 ft.
55. EFIS display
format.
Discrete(s) .........
...........................
4 ........................
...........................
Discretes should show the
display system status (e.g.,
off, normal, fail, composite,
sector, plan, nav aids,
weather radar, range,
copy).
56. Multi-function/
Engine Alerts
Display format.
Discrete(s) .........
...........................
4 ........................
...........................
Discretes should show the
display system status (e.g.,
off, normal, fail, and the
identity of display pages
for emergency procedures,
need not be recorded).
57. Thrust com-
mand.
17
.
Full Range .........
±
2% ...................
2 ........................
2% of full range
58. Thrust target
Full range ..........
±
2% ...................
4 ........................
2% of full range.
59. Fuel quantity
in CG trim tank.
Full range ..........
±
5% ...................
(1 per 64 sec.) ..
1% of full range.
60. Primary Navi-
gation System
Reference.
Discrete GPS,
INS, VOR/
DME, MLS,
Localizer
Glideslope.
...........................
4 ........................
...........................
A suitable combination of
discretes to determine the
Primary Navigation System
reference.
61. Ice Detection
Discrete ‘‘ice’’ or
‘‘no ice’’.
...........................
4 ........................
62. Engine warn-
ing each engine
vibration.
Discrete .............
...........................
1 ........................
63. Engine warn-
ing each engine
over temp.
Discrete .............
...........................
1 ........................
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