(39)
Reconnect the connector D1960 to detector element TS5168.
S 035-051
(40)
Remove the jumper between the center pin of D2026 and the inconel tubing of detector element TS5192.
S 035-052
(41)
Remove the jumper between the center pin of connector D2026 and the center conductor of detector element TS5192.
(42)
Reconnect the connector D2026 to detector element TS5192.
S 435-050
S 435-053
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
26-18-00
ALL ú ú 01 Page 508 ú Dec 20/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 865-054
(43) Remove the DO-NOT-CLOSE tags and close these breakers on the P11 overhead panel.
(a)
11Q17, DUCT LEAK DET LEFT
(b)
11Q25, DUCT LEAK DET RIGHT
(c)
11Q26, DUCT LEAK CONT
S 285-055
(44) Make sure these indications occur:
(a)
The left DUCT LEAK and the right DUCT LEAK lights shall not illuminate on the Bleed Air Supply Panel (P5).
(b)
Both CAUTION lights shall not illuminate on the P7 panel.
(c)
The L BLD DUCT LEAK and R BLD DUCT LEAK message shall disappear from the EICAS Caution page.
(d)
The DUCT LEAK BITE message shall remain on the EICAS
maintenance page.
(e)
The aural warning owl tone shall silence from the aural warning speakers.
S 985-056
(45)
Push and release the LOC TEST button on the Wheel Well Fire and ECS Duct Leak Detection System control card M691 on the P50 Electrical Systems card file.
S 285-057
(46)
Make sure codes 91 and then 99 are shown on the M691 display.
S 985-058
(47)
Push and release the MEM READ button on the M691 display.
S 285-059
(48)
Make sure codes 24 or 74 are shown.
S 985-060
(49)
Push and release the MEM CLR button.
(50)
Make sure the display is blank.
(51)
Push and release the MEM READ button.
(52)
Make sure code 24 or 74 is shown.
(53)
Push and release the MEM CLR button.
(54)
Make sure the display is blank.
S 285-061
S 985-062
S 285-063
S 985-064
S 285-065
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú 01 Page 509 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 985-066
(55)
Push and release the MEM READ button.
S 285-067
(56)
Make sure code 97 is shown.
S 985-068
(57)
Push and release the MEM CLR button.
S 285-069
(58)
Make sure the display is blank.
S 985-070
(59)
Press the ECS/MSG button on the EICAS (P61) maintenance panel.
S 985-071
(60)
Press the AUTO/READ button on the EICAS (P61) maintenance panel.
S 985-072
(61)
Press the ERASE button on the EICAS (P61) maintenance panel for each page of messages.
S 985-073
(62)
Press the AUTO/READ button on the EICAS maintenance panel (P61).
S 285-074
(63)
Verify the left DUCT LEAK BITE disappears from the EICAS maintenance page.
S 985-075
(64)
Push and release the LOC TEST button on M691.
S 285-076
(65)
Make sure codes 91 and 99 are shown.
S 985-077
(66)
Push and release the MEM READ button.
(67)
Make sure code 97 is shown.
S 285-078
NOTE: Code 97 displays for 1 minute.
____
S 985-079
(68)
Push and hold the LOC TEST button
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