TM 1–1520–238–T–1
4–48
Change 5
4–7
MSL SYSTEM – INTERACTIVE FD/LS
4–7
CHECK (cont)
TASK
RESULT
(b) Perform
CORRECTIVE
ACTION indicated for
first NO–GO
displayed on HOD.
(c) Perform SYSTEMS
– POWER–UP
(para 3–1).
(d) Repeat FD/LS check
beginning with step 2.
If NO–GO repeats
after CORRECTIVE
ACTION, refer to
TM 9-1427-475-20.
NOTE
Record all NO–GOs before rotating DATA
ENTRY switch to STBY (ADC).
s. On DEK, rotate
DATA ENTRY switch
to STBY (ADC).
NOTE
If this FD/LS check is to be followed by the
HME – SYSTEM OPERATIONAL CHECK
(TM 9-1427-475-20), omit step 4. This
eliminates the need for the 6 to 9 minute HARS
gyro warm–up period.
4. Perform SYSTEMS – POWER DOWN (para 3–2), if
power is no longer required.
