S 714-031
(7)
Make sure the message TEST PASSED or FIRE TEST FAILED shows on the upper EICAS display.
NOTE: "FIRE TEST FAILED" is acceptable if no engine related
____ messages are displayed. The message can be a result of circuit breakers opened or a fault can exist on a related fire/overheat system.
S 864-094
(8)
Release the FIRE/OVHT test switch.
(9)
Push the STAT button on the pilot glareshield.
S 864-096
(10)
Make sure that the status EICAS message relative to the Engine fire or overheat detection system appear on the lower EICAS display.
S 864-095
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747-400 MAINTENANCE MANUAL
S 764-097
(11) Do the Fire Detection Circuit Test for the engine with the AFOLTS card replaced.
E. Fire Detection Circuit Test
S 864-082
(1)
Make sure the applicable circuit breakers as shown in Figure 402 for the card you removed are closed.
S 744-039
(2)
Push the STAT button on the EICAS control pnael, P10 to display status message on the lower EICAS display.
S 494-098
(3)
AIRPLANES WITH WALTER KIDDE FIRE DETECTION SYSTEM; Connect a jumper from T681 lug A/1 (loop B) to the airplane gound.
S 734-042
(4)
Make sure the EICAS status message ENG 1 FIRE LP B shows on the lower EICAS display.
NOTE: There is a 20 second delay before the EICAS message will
____
display.
S 734-043
(5)
Make sure the EICAS status message ENG 1 FIRE LP A does not show on the lower EICAS display.
S 734-044
(6)
Make sure the EICAS advisory message DET FIRE/OVHT 1 does not show on the upper EICAS display.
S 484-100
(7)
AIRPLANES WITH WALTER KIDDE FIRE DETECTION SYSTEM; Connect a jumper from T681 lug A/1 (loop A) to the airplane gound.
S 734-046
(8)
Make sure the EICAS status message ENG 1 FIRE LP A shows on the lower EICAS display.
NOTE: There is a 20 second delay before the EICAS message will
____
display.
S 734-047
(9) Make sure the EICAS advisory message DET FIRE/OVHT 1 shows on the upper EICAS display.
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747-400 MAINTENANCE MANUAL
S 084-102
(10)
AIRPLANES WITH WALTER KIDDE FIRE DETECTION SYSTEM; Disconnect the jumper between T681 lug A/1 (loop A and loop B) and the airplane ground.
S 734-050
(11)
Make sure theses messages ENG 1 FIRE LP A and ENG 1 FIRE LP B do not show on the lower EICAS display.
S 734-051
(12)
Make sure the EICAS advisory message DET FIRE/OVHT 1 does not show on the upper EICAS display.
S 734-083
(13)
Do the test again as necessary for engine 2, 3, and 4, one engine at a time.
S 864-088
(14)
Remove the DO-NOT-CLOSE tags and close these circuit breakers.
(a)
6H1 FIRE EXTINGUISHER ENG 1&3 B
(b)
6H2 FIRE EXTINGUISHER ENG 1&3 A
(c)
6H3 FIRE EXTINGUISHER ENG 2&4 B
(d)
6H4 FIRE EXTINGUISHER ENG 2&4 A
(e)
6H5 FIRE EXTINGUISHER APU
(f)
6H6 FIRE EXTINGUISHER LOWER CARGO
TASK 26-10-01-754-013
4. Test of the Smoke Detection System for the Cargo Areas______________________________________________________
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