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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(2)  Access Panels
 5737L Engine No. 1 - Right Fan Cowl Panel
 5738L Engine No. 1 - Left Thrust Reverser
 5739L Engine No. 1 - Right Thrust Reverser
 5746L Engine No. 1 - Left Fan Cowl Panel
 5837R Engine No. 2 - Right Fan Cowl Panel
 5838R Engine No. 2 - Left Thrust Reverser
 5839R Engine No. 2 - Right Thrust Reverser
 5846R Engine No. 2 - Left Fan Cowl Panel

 E. Examine the Type 3 and Type 4 Ignition Leads (Fig. 601)
 S 866-003-C00
 (1)  If the left ignition system lead is to be examined, open this circuit breaker and attach a DO-NOT-CLOSE tag:
 (a)  P6 Load Control Center:
 1) L IGN

 S 866-004-C00
 (2)  If the right ignition system lead is to be examined, open this circuit breaker and attach a DO-NOT-CLOSE tag:
 (a)  P6 Load Control Center:
 1) R IGN

 S 016-005-C00
 (3)  Open the right and left fan cowl panel (AMM 71-11-02/201).
 S 016-007-C00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURY TO PERSONS OR DAMAGE TO THE EQUIPMENT CAN OCCUR.
 (4)  Open the right and left thrust reverser (AMM 78-31-00/201).
 S 866-026-C00
 WARNING:_______THE IGNITION SYSTEM VOLTAGE IS DANGEROUSLY HIGH. DO NOT TOUCH THE IGNITION COMPONENTS UNTIL YOU DO THE PROCEDURE THAT FOLLOWS. THIS PROCEDURE WILL RELEASE THE HIGH VOLTAGE FROM THE IGNITION EXCITER. IF YOU DO NOT OBEY THIS PROCEDURE, INJURY TO PERSONS CAN OCCUR.
 (5)  Do these steps to release the high voltage from the ignition exciter:
 (a)  Set the start switch to the OFF position.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
BRAIDED THREADED
CONDUIT CONNECTOR

PLUG
WELDS

SHELL
INSULATOR

Ignition Lead Check
Figure 601 (Sheet 1)

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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
COOLING AIR OUTLET SEE B
RETAINING CERAMIC
RING INSULATOR
WHITE
CHAMFERED
SILICONE SEAL
CONTACT  COUPING COLLAR NUT
CAGED SPRING
ASSEMBLY

ENGINES PRE-SB 74-009
A

COLLAR
COOLING AIR OUTLET
SEE B
RETAINING CERAMIC
RING INSULATOR
COUPING NUT
CONTACT
CAPTIVE
BLUE SPRING
SYMMETRICAL ASSEMBLY
SILICONE
SEAL

ENGINES POST-SB 74-009
A

0.055 INCH (1.397 mm) MINIMUM
B
1093233-02-A
Ignition Lead Check
Figure 601 (Sheet 2)

F70718
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