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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
AIR SHROUD COOLING LEAD IGNITION TYPE 3
WELDS PLUG AIR SHROUD COOLING
SEE G
SHELL
INSULATOR AIR EXIT COOLING
CONTACT IGNITER CONNECTOR THREADED SHROUD CLAMP
TYPE 3 IGNITION LEAD CONNECTOR
E FWD
F
SILICONE SEAL CHAMFERED SHROUD COOLING
SEE H IGNITION LEAD TYPE 4
CLAMP SHROUD
TYPE 4 IGNITION LEAD CONNECTOR
G GMM-1093233-00-B
Ignition Lead Installation
Figure 401 (Sheet 3)
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
COOLING AIR OUTLET
SYMMETRICAL SILICONE SEAL
ENGINES POST-SB 74-009
H
1093233-02-A
Ignition Lead Installation
Figure 401 (Sheet 4)
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F70775
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CFM56 ENGINES
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(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
D. Remove the Ignition Leads (Fig. 401)
S 864-002-C00
(1) If the left ignition lead is to be removed, open this circuit
breaker and attach a DO-NOT-CLOSE tag:
(a) P6 Load Control Center
1) L IGN
S 864-003-C00
(2) If the right ignition lead is to be removed, open this circuit
breaker and attach a DO-NOT-CLOSE tag:
(a) P6 Load Control Center
1) R IGN
S 014-004-C00
(3) Open the right and left fan cowl panel (AMM 71-11-02/201).
S 014-006-C00
WARNING: OBEY THE INSTRUCTIONS IN THIS PROCEDURE 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 034-023-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.
(b)
Stop (wait) for a minimum of 2 minutes.
(c)
Disconnect the exciter-to-igniter cable terminal from the igniter plug.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 024-027-C00
CAUTION: ON TYPE 3 IGNITION LEADS, LOOSEN OR TIGHTEN THE COUPLING
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