(b)  
Make sure these lights on the P7 panel come on. 1) AIRPLANES WITH OTHER THAN -98 FIRE DETECTION UNIT;

 the two FIRE WARN lights.
 2) The MASTER CAUTION lights.
 3) The OVHT/DET annunciator.

 (c)  
AIRPLANES WITH OTHER THAN -98 FIRE DETECTION UNIT; make sure that you hear the alarm bell in the control cabin.

 S 865-058
 CAUTION: DO NOT TURN THE FIRE SWITCH WHILE IT IS IN THE OUT POSITION.
_______ THE CONTENTS OF THE FIRE BOTTLE WILL BE LET OUT.
 (7)  Pull the engine 1 fire switch up.
 NOTE: The switch must be free to move up without the use of the
____
 override button.

 S 865-059
 (8)  
Push in the engine 1 fire switch to close.

 S 865-033

 (9)  
Turn the switches for loop A and loop B on the test box back to the NORMAL position.

 (a)  Make sure these lights on the P8-1 panel go off.
 1) The lights in the engine 1 fire switch.

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 2) The ENG 1 OVERHEAT light.
 (b)  
Make sure these lights on the P7 panel go off. 1) AIRPLANES WITH OTHER THAN -98 FIRE DETECTION UNIT;

 the two FIRE WARN lights 2) The MASTER CAUTION lights on the P7 panel are off. 3) The OVHT/DET annunciator on the P7 panel is off.

 (c)  
AIRPLANES WITH OTHER THAN -98 FIRE DETECTION UNIT; make sure the alarm bell in the control cabin makes no sound.

 S 865-034
 (10) Close this circuit breaker on the P6 panel:
 (a)  FIRE PROTECTION DETECTION - ENG 2
 S 765-035
 (11)
 Make sure the FAULT light on the P8-1 panel goes off.

 S 865-036

 (12)
 Move the switch for loop A on the test box to the GND FAULT position.

 (a)  Make sure the ENGINE 1 INOP-LOOP A light on the M279 module at the E3-3 shelf comes on.
 S 865-037
 (13) Move the switch for loop B on the test box to the GND FAULT position.
 (a)  Make sure these indications occur: 1) The ENGINE 1 INOP-LOOP B light on the M279 module comes on. 2) The FAULT light on the P8-1 panel comes on.
 S 865-038
 (14) Move the switches for loop A and loop B on the test box back to the NORMAL position.
 (a)  Make sure these indications occur: 1) The ENGINE 1 INOP-LOOP A light on the M279 module is off. 2) The ENGINE 1 INOP-LOOP B light on the M279 module is off. 3) The FAULT light on the P8-1 panel is off.
 S 865-060
 (15)
 Open these circuit breakers on the P6 panel:

 (a)  
FIRE PROTECTION DETECTION - ENG 1

 (b)  
FIRE PROTECTION DETECTION - ENG 2

 (c)  
MASTER WARNING AND CONTROL

 (16)
 Disconnect the test box from the airplane.

 S 865-040
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 S 865-041
 (17) AIRPLANES WITH ELECTRICAL CONNECTORS;
 Connect these electrical connectors:

 NOTE: If there is contamination in the connectors, you must do the
____ cleaning procedures in AMM 26-11-11/401, to make sure the system functions correctly.
 (a)  
D2898 (Upper fan detector - loop A)

 (b)  
D2902 (Upper fan detector - loop B)

 F.  Measure the electrical continuity from the fire detection elements to the airplane ground on engine 1.
 S 865-042
 (1)  Connect the multimeter between the outer shell of the upper fan detector element and the airplane ground.
 (a)  Make sure the resistance is less than 1 ohm.
　
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