TM 55-1520-240-23-7
9-124.1
LIGHT LEAK TEST
(Continued)
9-124.1
79.
Press the following press-to-test lamp. There
shall be no white light leaks:
a.
Console: Three lights (88) on IFF panel.
b.
Cockpit Passageway: Troop commander’s
cipher on light (89).
c.
Cabin:
(1)
Right gunner’s cipher on light (90).
(2)
Left gunners cipher on light (91).
(3)
Aft interphone (92).
80.
Remove power from interphone system (TM
11-1520-240-23).
81.
Remove power from IFF system (TM
11-1520-240-23).
FOLLOW-ON MAINTENANCE:
Remove external ac power (Task 1-37).
Set battery switch to OFF.
Remove cockpit window covers.
Open passageway blackout curtain.
Disconnect battery (Task 1-39).
Open NO. 2 AC BUS TIE circuit breaker.
Open DC 2 CROSS TIE circuit breaker.
Open NO. 2 XFMR RECT circuit breaker.
Open NO. 2 REV CUR CO circuit breaker.
Open NO. 2 DC BUS CONT circuit breaker.
Open NO. 1 AC BUS TIE circuit breaker.
Open DC 1 CROSS TIE circuit breaker.
Open NO. 1 XFMR RECT circuit breaker.
Open NO. 1 REV CUR CO circuit breaker.
Open NO. 1 DC BUS CONT circuit breaker.
Open EXT PWR CONT circuit breaker.
Open CONT AC circuit breaker.
Open ESS BUS FEED circuit breaker.
Open CAUTION PNL circuit breaker.
Open XMSN OIL TEMP circuit breaker.
END OF TASK
9-488
