S 425-016
(7)
Connect a jumper between the center conductor of dectector element TS5191 and the inconel tubing of detector element TS5191.
(8)
Press the ECS/MSG button on the EICAS (P61) maintenance panel.
S 985-017
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S 865-014
(9) 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 715-019
(10)
Wait a minimum of 30 seconds.
S 985-020
(11)
Press the AUTO/READ button on the EICAS (P61) maintenance panel.
S 985-021
(12)
Press the ERASE button on the EICAS (P61) maintenance panel for each page of messages.
S 985-022
(13)
Press the AUTO/READ button on the EICAS maintenance panel (P61).
S 285-023
(14)
Verify the following:
(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 not appear on the EICAS Caution page.
(d)
The DUCT LEAK BITE message shall not appear on the EICAS maintenance page.
(e)
The aural warning owl tone shall not sound from the aural warning speakers.
S 985-029
(15)
Toggle and hold the DUCT LEAK test switch on M10398 in the P61 panel to the DUCT LEAK position and wait 5 seconds.
S 285-030
(16)
Verify the following:
(a)
The left DUCT LEAK and the right DUCT LEAK lights shall illuminate on the Bleed Air Supply Panel (P5).
(b)
Both CAUTION lights shall illuminate on the P7 panel.
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(c)
The L BLD DUCT LEAK and R BLD DUCT LEAK messages shall appear on the EICAS Caution page.
(d)
The DUCT LEAK BITE message shall not appear on the EICAS maintenance page.
(e)
The aural warning owl tone shall sound from the aural warning speakers.
S 985-031
(17)
Release the DUCT LEAK test switch on M10398 in P61.
S 285-032
(18)
Verify the following:
(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 aural warning owl tone shall silence from the aural warning speakers.
