D.  
Procedure

 S 042-018
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE AILERON CONTROL SYSTEM
_______ (AMM 27-11-00/201) IF WORK WILL BE DONE NEAR THE AILERONS. ACCIDENTAL OPERATION OF THE AILERONS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPOILER CONTROL SYSTEM
_______ (AMM 27-61-00/201) IF WORK WILL BE DONE NEAR THE FLIGHT SPOILERS (SPOILERS 2, 3, 6, AND 7). ACCIDENTAL OPERATION OF THE FLIGHT SPOILERS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPEED BRAKE CONTROL
_______ SYSTEM (AMM 27-62-00/201) IF WORK WILL BE DONE NEAR THE GROUND SPOILERS (SPOILERS 0, 1, 4, 5, 8 AND 9). ACCIDENTAL OPERATION OF THE GROUND SPOILERS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE LEADING EDGE FLAPS AND
_______ SLATS (AMM 27-81-00/201) IF WORK WILL BE DONE NEAR THE WING LEADING EDGE. ACCIDENTAL OPERATION OF THE LEADING EDGE FLAPS AND SLATS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 CAUTION: DO NOT PERMIT EXTENSION OF THE LEADING EDGE FLAPS WHEN THE
_______ THRUST REVERSERS OR ENGINE COWLS ARE OPEN. UNDER THESE CONDITIONS, NORMAL TRAVEL OF THE LEADING EDGE FLAPS WILL BE BLOCKED, AND DAMAGE TO THE AIRPLANE WILL RESULT.
 (1)  
Do the trailing edge flap system deactivation:

 (a)  
Make sure that the ALTERNATE FLAPS master switch is set to the OFF position.

 (b)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 1)  P6-2 Panel a) FLAP b) ALT TE FLAP DRIVE AC

 (c)  
Get access to the trailing edge flap bypass valve in the right wheel well (Fig. 201).

 (d)  
Disconnect the electrical connector from the bypass valve.

 (e)  
Put the manual override lever on the bypass valve in POSITION 2.

 (f)  
Install the lock assembly on the bypass valve.

 TASK 27-51-00-442-016
 3.  Trailing Edge Flap System Activation
____________________________________
 A.  Access
 (1)  Location Zone
 101, 102 Control Cabin
 217 Right Main Wheel Well

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SEE A
BYPASS VALVE
LOCK ASSEMBLY F80049-2
FWD
A

Trailing Edge Flap Bypass Valve Lock Installation
Figure 201

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 B.  Procedure
 S 442-017
 (1)  
Activate the trailing edge flaps:

 (a)  
Remove the lock from the trailing edge flap bypass valve (Fig. 201).

 (b)  
Put the manual override lever on the bypass valve in POSITION 1.

 (c)  
Connect the electrical connector to the bypass valve.

 (d)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 1)  P6-2 Panel
 a) FLAP
 b) ALT TE FLAP DRIVE AC

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