(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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