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32 Facility Fuel Flow 2 0-16000 ±.5 percent PPH
33 FADECFuel Flow 1 0-15000 EECPPH
34 FMVPosition 1 0-100 EECpercent
35 FADECInlet Pressure 1 2-25 EECPSIA
36 PT2/PS2 Inlet Pressure 9457M50G02
or bellmouth pressure probe,
856A1158G04
2 or 4 10-15 ±0.25 percent PSIA
37 PSW(Bellmouth wall static
pressure)
8 or 16 10-15 ±0.25
percent PSIA
38 FADECAmbient Pressure 1 2-20 EECPSIA
39 Facility Ambient Pressure 1 13-15 ±0.15 percent PSIA
2011-4-9 CFMI PROPRIETARY INFORMATION : Subject to the restrictions on the Page 2 10
Training Material
CFM56-7B Engine Testing
Item PARAMETER QUANTITY
OPERATION RANGE ACCURACY
40 Thrust (BRDG) 2 0-30,000 ±0.5 percent LBS
41 Humidity 1 0-100 ±10 percent grain
42 Fuel Temperature 2 -23 to 40 ±0.5 DEGC
43 Fuel Flow Specific Gravity 1 0.75-0.90 ±0.25 percent
44 Fuel Flow Lower Heating Value 1 Lab sample 56 BTU/LBBTU
45 FADECPower Lever Angle 1 -40 to 90 EECDEG
46 Power Lever Angle 1 47-130 ±2 DEG
47 Fan discharge pressure (PT17)
4013304-474 or 856A1834
2 or 4 13-30 ±0.50 percent PSIA
48 Exhaust Stack Temperature
(optional)
25 0-200 ±2 DEGC
49 Forward Cell Pressure 1 13-15 ±.25 percent PSIA
50 Aft Cell Pressure 1 13-15 ±.25 percent PSIA
51 Core Engine Inlet Pressure (PT25)
(see Note)
1 13-35 psia (90-241 kPa
abs)
±0.1 psi (±0,7 kPa)
52 Fan Outlet Static Pressure (PS13)
(see Note)
1 2-50 psia (14-344 kPa
abs)
±0.5 percent
53 LPTDischarge Temperature (T50)
sensor, 856A1462G01 or or
856A1462G02 (see Note)
1 122-1922°F(50-
1050°C)
±0.5°F(0.3°C)
54 LPTDischarge Pressure (PT50
sensor, 856A1463G01
1 13-30 psia (90-207
kPa abs)
±0.50 percent
NOTE: For engines with the condition monitoring option (PMUX), PT25, PS13, and T50 are available on the ECU Arinc output, without the use of tools. For engines that do not have the condition monitoring option, engine parameters (PT25, PS13, and T50)
are available on the test cell hook-up.
2011-4-9 CFMI PROPRIETARY INFORMATION : Subject to the restrictions on the Page 2 11
Training Material
CFM56-7B Engine Testing
2011-4-9 CFMI PROPRIETARY INFORMATION : Subject to the restrictions on the Page 2 12
Training Material
CFM56-7B Engine Testing
2011-4-9 CFMI PROPRIETARY INFORMATION : Subject to the restrictions on the Page 2 13
Training Material
CFM56-7B Engine Testing
2011-4-9 CFMI PROPRIETARY INFORMATION : Subject to the restrictions on the Page 2 14
Training Material
CFM56-7B Engine Testing
2011-4-9 CFMI PROPRIETARY INFORMATION : Subject to the restrictions on the Page 2 15
　
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