TM 1-1520-238-T-6
9–266
9–80.
LANDING/SEARCH LIGHT – MAINTENANCE OPERATIONAL CHECK (cont)
9–80
M69-147
SRCH LT
SWITCH (S4)
EXT / RET / L / R
SWITCH (S1)
Figure 9–134.
Collective Stick
Task
Result
f. On pilot collective stick (fig. 9–134), set and
hold EXT/RET/L/R switch (S1) to RET.
Check that landing/search light retracts.
If landing/search light does not retract, go to
paragraph 9–87.
g. On pilot collective stick, set and hold
EXT/RET/L/R switch (S1) to EXT.
h. On pilot collective stick, set SRCH LT switch
(S4) to ON. Check that LT SRCH/LDG
circuit breaker (CB22) is closed and
landing/search light is lighted.
If LT SRCH/LDG circuit breaker (CB22) does not stay
closed, go to paragraph 9–82.
If landing/search light does not light, go to paragraph
9–88.
i. On pilot collective stick, momentarily set
SRCH LT switch (S4) to STOW and then to
OFF. Check that landing/search light is
stowed and not lighted.
If landing/search light does not stow, go to paragraph
9–89.
j. On pilot EXT LT/INTR LT panel (fig. 9–135),
set L CSL control to BRT. Check that pilot
collective stick edge-light is lighted.
If pilot collective stick edge-light is not lighted, go to
paragraph 9–90.
k. On pilot EXT LT/INTR LT panel, turn L CSL
control to OFF.
