F.
Do a Test of the Power Distribution and Indication

 S 865-009
 (1)  
Move the landing gear control lever to the OFF position.

 S 715-010

 (2)  
Make sure the two halves of each green NOSE, LEFT, and RIGHT light and each amber GEAR and DOORS light are on.

 S 865-011

 (3)  
Open this circuit breaker on the overhead panel P11:

 (a)  
11P28, R IND LTS 1

 S 715-012
 (4)  
Make sure only one half of each NOSE, LEFT, RIGHT, GEAR, and DOORS light is on.

 S 865-013

 (5)  
Open this circuit breaker on the overhead panel P11:

 (a)  
11A35, IND LTS 4

 (6)
Make sure the NOSE, LEFT, RIGHT, GEAR, and DOORS lights are out.

 S 865-015

 (7)  
Close this circuit breaker on the P11 panel:

 (a)  
11A35, IND LTS 4

 S 715-014
 

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757 
MAINTENANCE MANUAL 
P11 PANEL 
SEE A 
EICAS 
MAINTENANCE 
PANEL 
P61 
PANEL 
FLIGHT COMPARTMENT 
SEE  B  SEE C  LEVER GEAR CONTROL 
LOCK 
OVERRIDE 

P2 PANEL
P1-3 PANEL P3-1 PANEL A EICAS MESSAGES
D GO EO AR NOSE R
Sa g a
LEFT RIGHT
gg
LANDING GEAR POSITION INDICATOR LIGHTS
CB
Main Landing Gear - Position and Warning Figure 501

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A
757 MAINTENANCE MANUAL
WHEEL WELLRETRACT AFT WALLACTUATOR
UPPER DRAG STRUT
SEE A
FWD
BA
WHEEL WELL CEILING
BA
UPPER DRAG STRUT
A
Nose Landing Gear Up and Down Position Sensors Figure 502 (Sheet 1)
SENSOR
WIRING
NOSE LANDING GEAR DOWN SENSOR
NOSE LANDING GEAR UP SENSOR
WHEEL WELL AFT WALL

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A 757 MAINTENANCE MANUAL
NOSE LANDING GEAR UP SENSOR
(S10238 SYS 1)

WHEEL WELL CEILING
NOSE GEAR TRUNION
NOSE LANDING GEAR TRUNION

Nose Landing Gear Up and Down Position Sensors
Figure 502 (Sheet 2)

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MAINTENANCE MANUAL

LEFT MAIN LANDING GEAR UPLOCK ASSEMBLY
SEE B
SEE A
FWD
LEFT MAIN 
B  MLG UP AND  WHEEL WELL OUTBOARD WALL 
LOCKED  (RIGHT EQUIVALENT) 
SENSOR 
A 
B 

INBD
MAIN LANDING GEAR UPLOCK HOOK (REF)
LEFT MAIN LANDING GEAR UPLOCK ASSEMBLY
STRUCTURE (RIGHT EQUIVALENT)
B
MLG UP AND LOCKED
MLG SENSOR
UP AND LOCKED S10073, SYS 2, LEFT
SENSOR S10069, SYS 2, RIGHT
S10240, SYS 1, LEFT S10239, SYS 1, RIGHT
UPLOCK ASSEMBLY
B-B
MLG Up and Locked Proximity Sensors Figure 503

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757 MAINTENANCE MANUAL
WHEEL WELL FORWARD WALL
SEE A
SEE C
SEE B FORWARD DOORNOSE LANDING GEAR OPERATING FWDGEAR CLOSED SENSOR MECHANISM
(S10243, SYS 1) WHEEL WELL
FORWARD WALL
A
SENSOR BRACKET
0.14-0.16 INCH CLEARANCE
NOSE LANDING GEAR DOOR 0.14-0.16
OUTER  DOOR 
SKIN  SEAL  0.10-0.12 
INCH CLEARANCE 
TARGET  NOSE LANDING GEAR 
FWD  DOOR CLOSED SENSOR 
B  (S10081, SYS 2) 

SENSOR WHEEL WELL INCH CLEARANCE
BRACKET FORWARD WALL
DOOR SEAL 0.10-0.12
OUTER INCH CLEARANCE
SKIN
TARGET NOSE LANDING
FWD GEAR DOOR
C
Nose Landing Gear - Door Closed Sensors Figure 504

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MAINTENANCE MANUAL

MAIN WHEEL WALL WELL OUTBOARD 
SEE  A  SEE  B 
SENSOR BRACKET 

DOOR STOP
SCREWS
FWD  OUTER BODY (2 LOCATIONS)
SEE C
SKIN
A
SENSOR 
TARGET  BRACKET  MAIN LANDING GEAR  SENSOR BRACKET 
DOOR CLOSED SENSOR 
　
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