(d)  
11S19, AIR/GND SYS 2

 (e)  
EICAS circuit breakers (5 locations)

 S 865-017
 (3)  
Make sure this circuit breaker on the miscellaneous electrical equipment panel, P70, is closed:

 (a)  
70B8, FWD CARGO FAN

 S 865-018
 (4)  
Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags:

 (a)  
6H5, FIRE EXTINGUISHING CARGO BTL 1

 (b)  
6H6, FIRE EXTINGUISHING CARGO BTL 2

 S 865-019
 (5)  
Push the FWD CARGO FIRE switch on the aft pilot's control stand, P8, to the usual position (ARMED light off).

 S 735-021

 (6)  
Use the heat source to increase the temperature at the temperature control switch.

 (a)  
Make sure the forward cargo compartment heating fan does not operate.

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 (7)  S 735-022Use the cooling source to decrease the temperature at the temperature control switch. (a) Make sure the forward cargo compartment heating fan starts and pulls air into the fan inlet.
 (8)  S 215-023Make sure all the joints and ducting to and from the fan are tight. (a) To make sure you cannot feel air leakage, put your hand 2 inches from the joints and ducting.
 (9)  S 735-024Make sure the air blows out from each vent nozzle.
 S 865-025

 (10)
 Set the EICAS COMPUTER switch on the EICAS pilots display to LEFT.

 S 865-026

 (11)
 Open this circuit breaker on the miscellaneous electrical equipment panel, P70, and attach a DO-NOT-CLOSE tag:

 (a)  
70B8, FWD CARGO FAN

 S 215-028
 (12)
 Make sure the forward cargo fan stops.

 S 215-029

 (13)
 Push the STATUS button on the EICAS pilot's display.

 (a)  
Make sure the EICAS status message, FWD CARGO FAN, shows on the bottom display.

 S 215-030
 (14)
 Push the ECS/MSG button on the right EICAS display panel, P61.

 (a)  
Make sure the EICAS maintenance message, FWD CARGO FAN, shows on the bottom display.

 S 865-031
 (15) Put the EICAS COMPUTER switch on the P61 panel to RIGHT.
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 S 215-032
 (16) Push the AUTO READ button then the ERASE button on the EICAS display P61 panel for approximately 3 seconds each.
 NOTE: Make sure the parking brake is on.
____
 (a)  Make sure the EICAS maintenance message, FWD CARGO FAN, shows on the bottom display.
 S 865-033
 (17)
 Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P70 panel:

 (a)  
70B8, FWD CARGO FAN

 S 215-035
 (18)
 Make sure the forward cargo fan starts.

 S 215-036

 (19)
 Push the AUTO READ button then the ERASE button on the EICAS maintenance panel for approximately 3 seconds each.

 NOTE: Make sure the parking brake is on.
____
 (a)  Make sure the EICAS maintenance message, FWD CARGO FAN, does not show on the bottom display.
 S 865-037
 (20)
 Push the FWD CARGO FIRE switch on the P8 stand to the ARMED position (ARMED light on).

 S 215-039

 (21)
 Make sure the forward cargo fan stops.

 S 215-040

 (22)
 Push the FWD CARGO FIRE switch to the usual position (ARMED light off).

 (a)  
Make sure the fan starts.

 (23)
 Remove the cooling source.

 S 805-042
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