S 865-321
 (34)
 Open the 6C34 AOA HEAT R circuit breaker on the P6 Main Power Distribution Panel.

 S 865-004

 (35)
 Close the 6D29 PROBE HEAT TAT R circuit breaker on the P6 Main Power Distribution Panel.

 S 725-003

 (36)
 Push the LSK that is adjacent to <PROBE HEAT R on the GROUND TESTS MENU.

 (a) Make sure bit 16 of label 270 is momentarily in the one state.
 S 865-195
 (37)
 Open the 6D29 PROBE TAT R circuit breaker on the P6 Main Power Distribution Panel.

 S 085-816

 (38)
 Disconnect the ARINC 429 bus reader from the R ADC front panel TEST ONLY connecter.

 S 725-820

 (39)
 Do these steps to do a test of the probe heat interfaces for the center ADC:

 (a) (b)  Set the AIR DATA switch on the first officer's SOURCE SELECT module to the C position.Connect the ARINC 429 bus reader to the C ADC front panel TEST ONLY connector.
 (c)  Set the ARINC 429 bus reader to these parameters:
 Octal Label:  270
 SDI: Display:  2 (Bit 10=1, Bit 9=0)Binary

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 1) Make sure bits 14, 15, 16, 17, and 18 of label 270 are in
 the zero state.
 (d)  Close the 6D31 PROBE HEAT PITOT R circuit breaker on the P6
 Main Power Distribution Panel.
 (e)  Push the LSK that is adjacent to <PROBE HEAT R on the GROUND
 TESTS MENU.
 1) Make sure bit 15 of label 270 is momentarily in the one
 state.
 (f)  Open the 6D31 PROBE HEAT PITOT R circuit breaker on the P6 Main
 Power Distribution Panel.
 (g)  Close the 6D32 PROBE HEAT AUX PITOT L circuit breaker on the P6
 Main Power Distribution Panel.
 (h)  Push the LSK that is adjacent to <PROBE HEAT L on the GROUND
 TESTS MENU.
 1) Make sure bit 14 of label 270 is momentarily in the one
 state.
 (i)  Open the 6D32 PROBE HEAT AUX PITOT L circuit breaker on the P6
 Main Power Distribution Panel.
 (j)  Close the 6C33 AOA HEAT L circuit breaker on the P6 Main Power
 Distribution Panel.
 (k)  Push the LSK that is adjacent to <PROBE HEAT L on the GROUND
 TESTS MENU.
 1) Make sure bit 17 of label 270 is momentarily in the one
 state.
 (l)  Open the 6C33 AOA HEAT L circuit breaker on the P6 Main Power
 Distribution Panel.
 (m)  Close the 6C34 AOA HEAT R circuit breaker on the P6 Main Power
 Distribution Panel.
 (n)  Push the LSK that is adjacent to <PROBE HEAT R on the GROUND
 TESTS MENU.
 1) Make sure bit 18 of label 270 is momentarily in the one
 state.
 (o)  Open the 6C34 AOA HEAT R circuit breaker on the P6 Main Power
 Distribution Panel.
 (p)  Set the AIR DATA switch on the first officer's SOURCE SELECT
 module to the R position.

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MAINTENANCE MANUAL

 (q)  
Set the AIR DATA switch on the captain's SOURCE SELECT module to the C position.

 (r)  
Change the SDI on the ARINC 429 bus reader to 1
 (Bit 10=0, Bit 9=1).

 (s)  
Close the 6C33 AOA HEAT L circuit breaker on the P6 Main Power Distribution Panel.

 (t)  
Push the LSK that is adjacent to <PROBE HEAT L on the GROUND TESTS MENU. 1) Make sure bit 17 of label 270 is momentarily in the one

 state.

 (u)  
Open the 6C33 AOA HEAT L circuit breaker on the P6 Main Power Distribution Panel.
　
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