d. BIT checks and reports system status
in one pass if expendables are installed
in all four dispensers. If only one maga-
zine is installed, BIT must be initiated
each time the magazine is moved to a
different dispenser, or a new magazine
Faults detected during BIT are stored in the
DCDU programmer memory. NO-GO indi-
cates the system has detected a fault which
must be corrected prior to resuming CMDS
operation. Maintenance must be performed
to correct the fault prior to clearing the
e. To clear a fault indication from memory
after maintenance has been per-
formed, momentarily press ENT/BIT
switch. If no other faults are identified,
system inventory will be displayed.
4-1-25. Flight Operations.
Missions in a threat environment require
the AN/ALE-47 Countermeasure Dispens-
er System to loaded with Advanced In-
frared Counter-measures Munitions (AIR-
CMM) flare combination. The dispenser is
divided into 3 zones and each zone is
loaded with 10 of the same type flares. A
correctly loaded dispenser will have an
equal number of M206, XM211 and XM212
Aircraft Countermeasure Flares. This
combination provides optimal counter-
measure capability. Deviations from this
AIRCMM flare combination will signifi-
cantly reduce countermeasure capability
and increase aircrew vulnerability to In-
frared (IR) missile threats. Aircraft shall
not be flown into threat environments with
any combination of flares other than this
AIRCMM flare solution unless authorized
by the unit commander. Failure to comply
could result in death or injury to personnel
or damage to equipment.
Follow all procedures carefully. All coun-
termeasure expendables can cause injury
and serious damage to equipment.
The DCDU MODE switch should be placed
to OFF or STBY for takeoffs and landings.
Additional safeing of the system would in-
clude inserting the safety pin in the safety
switch located in the aft cabin at station
1. AN/ALE-47 safety switch pin Removed.
2. DCDU switches Set as follows:
a. MODE MAN, SEMI, or AUTO as re-
b. MWS switch ON (if AUTO dispense
of expendables is desired).
c. O1, O2, CH. and FL switches ON. As
required (Indicator lights not illumi-
Current programming enables AUTO and
MAN dispense of expendables while in SEMI
mode when MWS switch is ON.
d. To initiate flare dispense, after MODE
switch is set to MAN, SEMI, or AUTO,
press FLARE DISP switch on the pilots
or copilots cyclic grip or press any of
the four hand-held crew dispense
switches located in the cabin at station
200 and 400 left and right.
e. MANUAL switch Set to any program
1 through 4, as required.
f. To dispense using manual program 6
(not selected o the DCDU), set MODE
switch to MAN; Manual switch in any
position; and press any of the four crew
dispense switches in the cabin at sta-
tion 200 and 400 left and right.
If jettison is attempted and no expend-
ables jettison, set JETTISON switch to
OFF, and reset CMDS system by turning
the DCDU MODE switch to OFF, then to
STBY, MAN, SEMI, or AUTO. Reattempt jet-
tison by setting JETTISON switch to ON.
3. Jettison is inhibited with safety pin installed
in safety switch.
4. If an in-flight emergency is evident and pay-
load jettison is required: JETTISON switch
Raise switch guard, set switch to ON. All
expendables should jettison.