TM 1–1520–238–T–1
Change 4
4–87
4–12 STAB – INTERACTIVE FD/LS CHECK
4–12
(ACY) (cont)
TASK
RESULT
If one or more FD/LS
NO–GO displays listed
appear on HOD, perform the
following in sequence:
(1) Perform SYSTEMS
– POWER DOWN
(para 3–2)
(2) Perform CORRECTIVE
ACTION indicated for first
NO–GO displayed on
HOD.
(3) Perform SYSTEMS
– POWER–UP
(para 3–1).
(4) On DEK, rotate DATA
ENTRY switch to STBY
for 5 seconds, then back
to FD/LS.
(5) Repeat FD/LS check
beginning with step f. If
NO–GO repeats after
CORRECTIVE ACTION,
refer to
TM 1-1520-238-T-7.
NOTE
Record all NO–GOs before rotating DATA
ENTRY switch to STBY.
t. On DEK, rotate
DATA ENTRY switch
to STBY.
NOTE
After successfully completing the FD/LS check,
STABILATOR–OPERATIONAL CHECK
(TM 1-1520-238-T-7) should be performed to
check the response of the stabilator system to
various simulated airspeeds and other
additional inputs not included in the FD/LS
check. If the operational check is to be
performed, omit step 4.
4. Perform SYSTEMS – POWER DOWN (para 3–2).
