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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-016
(5)
Make sure these circuit breakers are closed:
(a) P7 Overhead Circuit Breaker Panel
1) 7G14 EMER LTS CHARGING FWD
2) 7G15 EMER LTS CHARGING AFT
D.
Do a Test of the EMER LIGHTS Switch
S 864-017
CAUTION: DO NOT LEAVE THE EMERGENCY LIGHTS ON FOR A TIME PERIOD LONGER
_______ THAN 30 SECONDS TO CHECK MODULE OPERATION. TOO MUCH OPERATION CAUSES UNNECESSARY BATTERY DISCHARGE.
(1)
Set the EMER LIGHTS switch to ON.
S 714-018
(2)
Make sure the emergency lights come on.
NOTE: You only have to see one light to make sure the module
____
operates.
S 864-019
(3)
Set the EMER LIGHTS switch to ARMED.
S 714-020
(4)
Make sure the emergency lights go off and stay off.
S 864-021
CAUTION: DO NOT LEAVE THE EMERGENCY LIGHTS ON FOR A TIME PERIOD LONGER
_______ THAN 30 SECONDS TO CHECK THE MODULE OPERATION. TOO MUCH OPERATION CAUSES UNNECESSARY BATTERY DISCHARGE.
(5)
Open these circuit breakers:
(a) P7 Overhead Circuit Breaker Panel
1) 7G14 EMER LTS CHARGING FWD
2) 7G15 EMER LTS CHARGING AFT
(6)
Make sure the emergency lights come on.
S 714-022
NOTE: You only have to see one light to make sure the module
____
operates.
S 864-023
(7) Close these circuit breakers:
(a) P7 Overhead Circuit Breaker Panel
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(b)
7G14 EMER LTS CHARGING FWD
(c)
7G15 EMER LTS CHARGING AFT
S 714-024
(8)
Make sure the emergency lights go off and stay off.
S 864-025
(9)
Set the EMER LIGHTS switch to OFF.
E. Do a Test of the Other Module Switches
S 864-026
(1) Close these circuit breakers:
(a)
P6 Main Power Distribution Panel 1) 6C1 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 1 2) 6C2 ALTN PWR ENG FIRE OVHT DET LOOP A ENG 2 3) 6C3 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 3 4) 6C4 ALTN PWR ENG FIRE/OVHT DET LOOP A ENG 4 5) 6C5 ALTN PWR LOOP A APU FIRE/BLD DUCT OVHT 6) 6C7 W/W FIRE DET AC 7) 6G10 ENG FIRE/OVHT DET ENG 2 LOOP A 8) 6G11 ENG FIRE/OVHT DET ENG 2 LOOP B 9) 6G12 ENG FIRE/OVHT DET ENG 4 LOOP A 10) 6G13 ENG FIRE/OVHT DET ENG 4 LOOP B 11) 6H10 ENG FIRE/OVHT DET ENG 1 LOOP A 12) 6H11 ENG FIRE/OVHT DET ENG 1 LOOP B 13) 6H12 ENG FIRE/OVHT DET ENG 3 LOOP A 14) 6H13 ENG FIRE/OVHT DET ENG 3 LOOP B 15) 6H14 APU FIRE/BLD DUCT OVHT LOOP A 16) 6H15 APU FIRE/BLD DUCT OVHT LOOP B
(b)
P7 Overhead Circuit Breaker Panel 1) 7A20 INTERPHONE CAPT 2) 7A21 INTERPHONE F/O 3) 7A22 INTERPHONE OBS 4) 7A23 INTERPHONE - SERV
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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A 747-400 MAINTENANCE MANUAL
5) 7H14 CARGO SMOKE DET LWR A 6) 7H15 CARGO SMOKE DET LWR B 7) 7H16 CARGO SMOKE - MAIN DECK ZN 1-8 DET A 8) 7H17 CARGO SMOKE - MAIN DECK ZN 1-8 DET B 9) 7H18 CARGO SMOKE - MAIN DECK ZN 9-16 DET A 10) 7H19 CARGO SMOKE - MAIN DECK ZN 9-16 DET B 11) 7H21 FUEL XFR VALVE MAIN 1 12) 7H24 FUEL XFR VALVE MAIN 4
(2) S 714-028Do the test on the FIRE/OVHT TEST switch (AMM 26-10-00/501).
(3) S 714-029Do the Captain/First Observer Audio Control Panel test and the First Officer/First Observer Audio Control Panel test (AMM 23-51-00/501).
(4) S 714-030Do the voice communication test between the ground service crew and the flight crew (AMM 23-41-00/501).
(5) S 714-031Do the test on the FUEL XFER MAIN 1 & 4 switch (AMM 28-16-04/401).
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