TM 1-1520-238-T-6
9–232
Change 5
9–55.
NAVIGATION LIGHTS – MAINTENANCE OPERATIONAL CHECK (cont)
9–55
1. Perform the maintenance operational check as follows:
Task
Result
a. On pilot center circuit breaker panel
(fig. 9–122), check that LT NAV circuit
breaker (CB73) is closed.
If LT NAV circuit breaker (CB73) does not stay
closed, go to paragraph 9–57.
M69-132
LT NAV
Figure 9–122.
Pilot Center Circuit Breaker Panel
b. On pilot EXT LT/INTR LT panel (fig. 9–123),
set NAV switch to DIM position, and then to
If LT NAV circuit breaker (CB73) does not stay
closed, go to paragraph 9–57.
BRT position. Check that left, right, and tail
navigation lights function properly in each
If left, right, and tail navigation lights do not light
properly, go to paragraph 9–58.
position.
If left navigation light does not light properly in both
positions, go to paragraph 9–59.
If right navigation light does not light properly in both
positions, go to paragraph 9–60.
If tail navigation light does not light properly in both
positions, go to paragraph 9–61.
M69-133
NAV SWITCH
Figure 9–123.
Pilot EXT LT/INTR LT Panel
2. Perform EXTERNAL POWER – POWER DOWN (para 9–46).
END OF TASK
