(4)  
For some steps it is necessary for a person to do an operation or reply. This may be to answer a question (YES or NO) or to do or to not do the next step (ADV or SKIP). The step can possibly tell the person to operate a switch or circuit breaker, supply or remove hydraulic power, or monitor a display or effect.

 (5)  
Use the YES/ADV switch to start the test that shows, give a reply to MCDP messages or instructions, to show all of the failures for the test being done, and to continue with a test when a failure stops the test.

 (6)  
The NO/SKIP switch usually causes the MCDP to stop the GRD TEST that is in operation and go to the subsequent GND TEST. The MCDP will not go to the subsequent GND TEST when the messages that follow show on the MCDP.

 (a)  
30 INFC FAULT? - the MCDP will go to 30 CURRENT OP FAULT? when the NO/SKIP switch is pushed.

 (b)  
30 VFY THRST LVR SYST CLR-ADV - the MCDP will go to 30 CURRENT OP FAULT? when the NO/SKIP switch is pushed.

 (c)  
40 A/L BUS ISLN TEST? - the MCDP will go to to 40 VFY ASA BLANK - RST ASA when the NO/SKIP switch is pushed.

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 (d)  
40 A/L SW LIGHTS TEST? - the MCDP will go to 40 A/L SRVO TEST? when the NO/SKIP switch is pushed.

 (e)  
40 A/L SRVO TEST? - the MCDP will go to advance to 40 A/L A/T TEST? when the NO/SKIP switch is pushed.

 (7)  When a ground test is complete, the MCDP display will show TEST COMPLETE with with the test number.
 B. Equipment
 (1)  
Nose Gear Steering Valve Lockpin - A09003-1

 (2)  
Remote MCDP, A22001-22 (preferred); A22001-15 (optional)

 C. References
 (1)  
09-11-00/201, Towing

 (2)  
22-41-01/401, Maintenance Monitor

 (3)  
24-22-00/201, Electrical Power - Control

 (4)  
27-21-00/501, Rudder and Rudder Trim Control System

 (5)  
27-61-00/201, Spoiler/Speedbrake Control System

 (6)  
29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 (7)  
31-41-00/501, Engine Indication and Crew Alerting System (EICAS)

 (8)  
34-11-00/201, Pitot-Static System

 (9)  
34-21-00/501, Inertial Reference System

 (10)
 36-00-00/201, Pneumatic General (Provide/Remove Pneumatic Power)

 (11)
 76-11-00/501, Engine Control System

 (12)
 78-31-00/201, Thrust Reverser System (Deactivation/Activation)

 D. Access
 (1)  
Location Zones
 119 Main Equipment Center (Left)
 211/212 Flight Compartment

 (2)  
Access Panel
 119BL Main Equipment Center

 E. Prepare to Test (Fig. 201)
 S 862-012
 (1)  
Make sure the circuit breakers necessary for the MCDP test to be done are closed before the Ground Test Mode is entered. Refer to Fig. 201.

 S 862-013

 (2)  
Open these P11 panel circuit breakers to prevent incorrect aural warnings:

 (a)  
11B16, AURAL WARN SPEAKER LEFT

 (b)  
11H35, AURAL WARN SPEAKER RIGHT

 (3)  
Supply electrical power (Ref 24-22-00).

 (4)  
Do the "Energize the MCDP and Do the Self Test" procedure.

 S 862-014
 S 862-015
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CIRCUIT BREAKERMCDP GROUND TESTS
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