S 972-003-C05
 CAUTION: MAKE SURE TO GET THE LOCAL BAROMETRIC PRESSURE (NOT CORRECTED
_______
 TO SEA LEVEL) FROM THE CONTROL TOWER. AN INCORRECT PRESSURE
 CAN GIVE YOU AN INCORRECT TARGET SELECTION.

 (3)  Find the barometric pressure (not corrected to sea level).
 (a)  
If the local barometric pressure (LBP) is not available, use the altimeter setting to determine the LBP (Fig. 201A). 1) Find the point where the altimeter setting goes across the

 applicable field elevation to get the LBP.

 (b)  
The equation to find LBP using Altimeter Setting in "HG and Standard Local Barometeric Pressure (SLBP) is:

 LBP = (Altimeter Setting "HG - 29.92) + SLBP
 NOTE: You can do a check of the LBP by dialing the altimeter
____ to 0 feet altitude and reading LBP from the barometric pressure setting window (if altimeter is available).
 S 972-004-C05
 (4)  Find the engine speed target for the test (Fig. 202).
 (a)  Find the OAT on the table.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. CFM56-3B-2 ENGINES ú

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737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
33
LOCAL BAROMETRIC PRESSURE - IN. HG
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18

282930 3132 ALTIMETER SETTING - IN. HG
Altimeter Setting Conversion to Local Barometric Pressure
Figure 201A

 E61188
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 ú  C02  Page 204
 ú  Nov 15/94 

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CFM56 ENGINES
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(b)  Read across the table to find the target for that OAT and barometric pressure.
 NOTE: If ambient temperature or barometric pressure falls
____ between values given in trim table, correct data can be obtained by interpolation.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////

NOTE:TRIM DATA WITHOUT AIRBLEED OR ELECTRICAL LOAD CONDITIONS.
TOLERANCES
LOW IDLE +3.0/-1.0 %N2 P-P PMC OFF +0.5/-0.5 %N2 HIGH IDLE +3.0/-0.7 %N2 P-P PMC ON +1.5/-1.5 %N1
Trim Tables (Low/High Idle, Part Power [92.5 Degrees PLA], Accel/Decel)
Figure 202 (Sheet 1)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. CFM56-3B-2 ENGINES ú

 71-00-01
 (RATED AT 22K)  ú  CONFIG  5
 ú  C02  Page 206
 ú  Nov 15/94 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////

NOTE: TRIM DATA WITHOUT AIRBLEED OR ELECTRICAL LOAD CONDITIONS.
TOLERANCES
LOW IDLE +3.0/-1.0 %N2 P-P PMC OFF +0.5/-0.5 %N2 HIGH IDLE +3.0/-0.7 %N2 P-P PMC ON +1.5/-1.5 %N1
Trim Tables (Low/High Idle, Part Power [92.5 Degrees PLA], Accel/Decel)
　
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