42. RAMP CONTROL VALVE handle DN. Check
that ramp does not move.
43. RAMP CONTROL VALVE handle STOP.
W. RADAR ALTIMETER CHECK.
1. Radar Altimeter Check.
a. Dial pointers between -5 and 5 feet.
b. Digital display indicates 0-3 feet.
c. Set LO Set Index at 100 feet and HI Set
Index 800 feet.
d. LO caution light is on
e. HI caution light is off.
f. OFF flags not in view.
O g. Pilots Radar Altimeter Only Periodic
audio warning ALTITUDE LOW, TOO
LOW heard in headsets (pilot, copilot, flight
h. PRESS-TO-TEST, hold and note.
(1) OFF flags not in view.
(2) Dial points 900-1,100 feet.
(3) Digital points 900-1,100 feet.
(4) LO caution light off.
(5) HI caution light on.
O (6) Periodic audio warning ALTITUDE
HIGH, CHECK ALTITUDE heard in
headsets (pilot, copilot, flight engineer
(7) Release PRESS-TO-TEST.
O i. Momentarily depress PRESS-TO-TEST