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(7) Hold the WING ANTI-ICE WINDOW/PROBE HEAT test switch on the right sidewall panel, P61, in the WING ANTI-ICE position.
NOTE: The leakage test is done during the 12 second cycle that the
____ wing TAI valve is open. Repeated cycles of the WING ANTI-ICE WINDOW/PROBE HEAT test switch can be necessary to complete the leakage test.
S 755-103
WARNING: DO NOT TRY TO TIGHTEN THE CLAMPS OR FLANGES WHEN THE DUCTS ARE
_______ PRESSURIZED. THE HOT PRESSURIZED AIR CAN CAUSE INJURY TO PERSONS.
(8) Make sure there is not too much leakage at any duct position downstream of the left TAI valve.
(a)
Some leakage is permitted, but no fast air movement should be felt 12 inches from a leak.
(b)
Repair a large air leakage by a joint or coupling adjustment, or by a duct replacement.
S 865-104
(9)
Release the WING ANTI-ICE WINDOW/PROBE HEAT test switch.
S 085-105
(10)
Remove the pressure gage from the tee duct.
(11)
Put the cap back on the fitting.
S 095-104
(12)
Remove the pneumatic power source and the blocking device for the opposite pneumatic service outlet (AMM 36-00-00/201).
S 415-106
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WARNING: PREPARE THE SAFETY-SENSITIVE SYSTEMS FOR THE AIR MODE BEFORE
_______ YOU OPEN THE AIR/GROUND CIRCUIT BREAKERS. IN THE AIR MODE, MANY OF THE AIRPLANE SYSTEMS CAN OPERATE AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(13)
Prepare the safety-sensitive systems for air mode simulation (AMM 32-09-02/201).
S 865-015
(14)
Open these circuit breakers on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
(a)
11C19, LANDING GEAR POS SYS 2 ALTN
(b)
11S23, LANDING GEAR POS SYS 2
S 215-064
(15) Make sure the WING ANTI-ICE switch-light on the P5 panel is in the OFF position.
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