376
14 CFR Ch. I (1–1–19 Edition)
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
64. Engine warn-
ing each engine
oil pressure low.
Discrete .............
...........................
1 ........................
65. Engine warn-
ing each engine
over speed.
Discrete .............
...........................
1 ........................
66. Yaw Trim Sur-
face Position.
Full Range .........
±
3% Unless
Higher Accu-
racy Uniquely
Required.
2 ........................
0.3% of full
range..
67. Roll Trim Sur-
face Position.
Full Range .........
±
3% Unless
Higher Accu-
racy Uniquely
Required.
2 ........................
0.3% of full
range..
68. Brake Pres-
sure (left and
right).
As installed ........
±
5% ...................
1 ........................
...........................
To determine braking effort
applied by pilots or by
autobrakes.
69. Brake Pedal
Application (left
and right).
Discrete or Ana-
log ‘‘applied’’
or ‘‘off’’.
±
5% (Analog) ....
1 ........................
...........................
To determine braking applied
by pilots.
70. Yaw or side-
slip angle.
Full Range .........
±
5% ...................
1 ........................
0,5
°
. ...................
71. Engine bleed
valve position.
Decrete ‘‘open’’
or ‘‘closed’’.
...........................
4 ........................
...........................
72. De-icing or
anti-icing sys-
tem selection.
Discrete ‘‘on’’ or
‘‘off’’.
...........................
4 ........................
...........................
73. Computed
center of gravity.
Full Range .........
±
5% ...................
(1 per 64 sec.) ..
1% of full range.
74. AC electrical
bus status.
Discrete ‘‘power’’
or ‘‘off’’.
...........................
4 ........................
...........................
Each bus.
75. DC electrical
bus status.
Discrete ‘‘power’’
or ‘‘off’’.
...........................
4 ........................
...........................
Each bus.
76. APU bleed
valve position.
Discrete ‘‘open’’
or ‘‘closed.
...........................
4. .......................
77. Hydraulic
Pressure (each
system).
Full range ..........
±
5% ...................
2 ........................
100 psi.
78. Loss of cabin
pressure.
Discrete ‘‘loss’’
or ‘‘normal’’.
...........................
1. .......................
79. Computer fail-
ure (critical
flight and en-
gine control
systems).
Discrete ‘‘fail’’ or
‘‘normal’’.
...........................
4. .......................
80. Heads-up dis-
play (when an
information
source is in-
stalled).
Discrete(s) ‘‘on’’
or ‘‘off’’.
...........................
4. .......................
81. Para-visual
display (when
an information
source is in-
stalled).
Discrete(s) ‘‘on’’
or ‘‘off’’.
...........................
1. .......................
82. Cockpit trim
control input po-
sition—pitch.
Full Range .........
±
5% ...................
1 ........................
0.2% of full
range.
Where mechanical means for
control inputs are not avail-
able, cockpit display trim
positions should be re-
corded.
83. Cockpit trim
control input po-
sition—roll.
Full Range .........
±
5% ...................
1 ........................
0.7% of full
range.
Where mechanical means for
control inputs are not avail-
able, cockpit display trim
position should be re-
corded.
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