(3)  
27-51-00/201, Trailing Edge Flap System

 (4)  
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 (5)  
34-11-00/201, Pitot-Static System

 D.
Access

 (1)  
Location Zones
 211/212 Control Cabin
 311/312 Area Aft of Pressure Bulkhead to BS 1787.45

 (2)  
Access Panels
 113AL Forward Compartment Access Door
 311AL Forward Stabilizer Compartment Access Door

 E.
Prepare for the Tests

 S 865-722
 (1)  
Supply electrical power (Ref 24-22-00).

 S 865-723

 (2)  
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:

 (a)  
11C6, CSEU 1L AC
 or FLT CONT ELEC 1L AC

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757 MAINTENANCE MANUAL
 (b)  
11C8, CSEU 2L AC
 or FLT CONT ELEC 2L AC

 (c)  
11G17, CSEU 1R AC
 or FLT CONT ELEC 1R AC

 (d)  
11G27, CSEU 2R AC
 or FLT CONT ELEC 2R AC

 S 015-890
 WARNING:_______STAY OFF SERVICE ACCESS DOORS 311AL AND 313AL. THE WEIGHT OF A PERSON CAN CAUSE THE SPRING-LOADED LATCHES TO RELEASE. A PERSON CAN BE INJURED IF THEY FALL THROUGH THE OPEN DOOR.
 (3)  Open the forward stabilizer-compartment access door 311AL
 (Ref 06-42-00).

 S 865-891
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (4)
Pressurize the right and center hydraulic systems (Ref 29-11-00).

 F.
Stabilizer-Trim Electrical Operation Test (Fig. 501)

 NOTE: The stabilizer may not be in electrical control range if it
____ does not move when the stabilizer-trim control-wheel-switches are moved in one direction. Move the stabilizer-trim control-wheel-switches in the other direction to move the stabilizer into electrical control range, then continue with test.
 S 865-183
 (1)  Put the CENTER STAB TRIM SHUTOFF switch on the control stand panel, P10, to CUTOUT.
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 (2)  S 215-184Make sure that the RIGHT STAB TRIM SHUTOFF switch on the P10 panel is at NORM.
 (3)  S 865-185Move the captain's stabilizer-trim control-wheel-switches up (airplane nose down). (a) Make sure that the stabilizer moves in the airplane nose down direction (stabilizer leading edge up).
 (4)  S 865-186Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to CUTOUT while the stabilizer is moving. (a) Make sure that stabilizer motion stops in one second.
 (5)  S 865-187Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to NORM. (a) Make sure that stabilizer motion starts in one second.
 (6)  S 865-188Release the stabilizer-trim control-wheel-switches. (a) Make sure that stabilizer motion stops.
 (7)  S 865-189Move the first officer's stabilizer-trim control-wheel-switches down (airplane nose up). (a) Make sure that the stabilizer moves in the airplane nose up direction (stabilizer leading edge down).
 (8)  S 865-190Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to CUTOUT while the stabilizer moves. (a) Make sure that stabilizer movement stops in one second.
 (9)  S 865-191Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to NORM. (a) Make sure that stabilizer movement starts in one second.

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