533
Federal Aviation Administration, DOT
Pt. 135, App. F
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
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
comand
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.
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.
Discrete ‘‘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.
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