S 215-021
(14)
Make sure the EICAS level C alert message L ENG ANTI-ICE is shown on the EICAS display.
S 485-080
(15)
Put a jumper between pins 1 and 2 of the high pressure switch electrical connector. Make sure the EIACS message L ENG TAI VALVE message is shown on the EICAS display.
S 085-081
(16)
Remove the jumper from pins 1 and 2 of the high pressure switch electrical connector.
S 435-096
(17)
Connect the electrical connector to the high pressure switch.
(18)
Connect the electrical connector to the TAI valve.
S 865-089
(19)
Put the L ENGINE ANTI-ICE switch-light on the P5 panel in the OFF position.
S 435-025
G. Test - Right Engine TAI System (Fig. 501)
S 865-101
(1) Open this circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
(a) 11C28, ENG ANTI-ICE RIGHT (Without EROPS)
11C28, ANTI-ICE ENG RIGHT (With EROPS)
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MAINTENANCE MANUAL
(2) S 035-082Disconnect the electrical connectors that follow: (a) The high pressure switch (b) The low pressure switch (c) The Thermal Anti-Ice (TAI) valve.
(3) S 865-102Remove the DO-NOT-CLOSE tag and close this P11 panel circuit breaker: (a) 11C28, ENG ANTI-ICE RIGHT
(4) S 865-031Put the R ENGINE ANTI-ICE switch-light on the P5 panel in the OFF position.
(5) S 765-032Measure the voltage at pin 1 of the TAI valve electrical connector. Make sure the voltage is less than 2v dc.
(6) S 765-033Measure the voltage at pin 1 of the low pressure switch electrical connector. Make sure the voltage is 23 to 32v dc.
(7) S 865-083Put the R ENGINE ANTI-ICE switch-light on the P5 panel in the ON position.
(8) S 765-035Measure the voltage at pin 1 of the low pressure switch electrical connector. Make sure the voltage is 23 to 32v dc.
(9) S 765-036Measure the voltage at pin 1 of the TAI valve electrical connector. Make sure the voltage is 23 to 32v dc.
S 865-084
(10)
Make sure the six EICAS circuit breakers on the P11 panel are closed.
S 215-038
(11)
Make sure the EICAS message R TAI message is shown on the EICAS display.
