(d)  
Push the LSK that is adjacent to <GROUND TESTS to show the GROUND TESTS menu.

 (e)  
Push the NEXT PAGE key until you find <32 PSEU SYSTEM.

 (f)  
Push the LSK that is adjacent to <32 PSEU SYSTEM to show the GROUND TESTS menu for the PSEU system.

 NOTE: If INHIBITED shows above <PRI LAND GEAR SYS or <ALT LAND
____ GEAR SYS, the test will not operate.
 (g)  If INHIBITED shows above <PRI LAND GEAR SYS or <ALT LAND GEAR SYS: 1) Push the LSK that is adjacent to the test prompt. 2) Do the steps shown on the CDU. 3) Push the LSK that is adjacent to <RETURN to show the ground
 test menu again.
 F.  Landing Gear Systems Ground Test
 S 745-250
 (1)  
Push the LSK that is adjacent to <PRI LAND GEAR SYS or <ALT LAND GEAR SYS.

 (a)  
When the TEST PRECONDITIONS page shows, make sure each instruction on the page is completed. (Push the NEXT PAGE key to see subsequent pages.)

 (b)  
Push the LSK that is adjacent to START TEST>.

 NOTE: IN PROGRESS shows during the test.
____
 S 745-251
 (2)  When IN PROGRESS goes out of view, look for PASS or FAIL> adjacent to <PRI LAND GEAR SYS or <ALT LAND GEAR SYS.
 NOTE: If a PASS indication shows, no failures occurred during the
____
 test.

 (a)  If FAIL> shows: 1) Push the LSK that is adjacent to FAIL> to see the GROUND TEST MSG pages for the failure. 2) Push the NEXT PAGE key until you find all the GROUND TEST MSG pages.
 3)  Make a list of all CMCS messages, CMCS message numbers, and ATA numbers that show on the GROUND TEST MSG pages.
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 4)  Go to the CMCS Message Index of the Fault Isolation Manual (FIM) to find the corrective action for each CMCS message.
 G.  Put the Airplane in Its Usual Condition
 S 865-252
 (1)  
Set the GND TESTS switch to the NORM position.

 S 865-253

 (2)  
Remove the electrical power if it is not necessary
 (AMM 24-22-00/201).

 TASK 32-61-00-765-152
 3.  Power and Ground Check______________________
 A.  General
 (1)  
This test is usually necessary if you have one of the conditions that follow:

 (a)  
If you change a wire bundle to the PSEU.

 (b)  
If you get an indication that you have a problem with the power supply to the PSEU.

 B.  
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 32-09-02/201, Air/Ground Relays

 (3)  
AMM 32-09-03/401, PSEU - Removal/Installation

 C.  
Access

 (1)  
Location Zone 117 Left Electrical and Electronics Compartment

 (2)  
Access Panels
 117A Main Equipment Center Access Door

 D.  
Preconditions

 S 865-308
 (1)  
These conditions are necessary for this task:

 (a)  
Electrical power on (AMM 24-22-00/201).

 (b)  
Integrated Display System (IDS) is serviceable (AMM 31-61-00/501).

 E.  
Prepare to Do the Power and Ground Check

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 S 045-154
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO PREPARE
_______ THE SAFETY-SENSITIVE SYSTEMS FOR THE AIR MODE. FAILURE TO DO THE STEPS CORRECTLY CAN CAUSE THE AUTOMATIC OPERATION OF AIRPLANE SYSTEMS. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Do this task: "Prepare Safety-Sensitive Systems for the Air Mode" (AMM 32-09-02/201).
　
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