Learjet 35A - Page 185

3-40 FAA APPROVED 4-30-76
REISSUED 2-25-81, CHANGE 10
PITCH AXIS MALFUNCTION (CONT)
10. Stall Warning System: STALL WARNING Switches — ON, one
at a time, to isolate malfunctioning system. If malfunction recurs,
set appropriate switch OFF.
• An abrupt nose-down control column movement is
evidence of a stick pusher malfunction.
• Below M
MO, a nose-up tendency is evidence of a
stick puller malfunction.
•If both STALL WARNING switches are OFF:
a. Maintain airspeed at least 30 knots above stall speeds shown in
Section V. VREF may be maintained on final approach in the
landing configuration.
b. Limit bank angles to 30° maximum.
• If L STALL WARNING switch is OFF, stick puller is inoperative —
Do not exceed M
MO (0.74 MI).
• If malfunction does not recur, probable cause of malfunction was
the autopilot (if autopilot was engaged). Do not engage
autopilot.
11. If malfunction has not been isolated to autopilot:
a. AUTOPILOT Switch — On.
b. Autopilot — As desired.
12. Yaw Damper (PRI or SEC) — Check engaged.
If malfunction was isolated to L STALL, use SEC yaw
damper. If malfunction was isolated to R STALL use PRI
yaw damper.
NOTE
NOTE
, CHANGE
10
3-40 FAA APPROVED 4-30-76
REISSUED 2-25-81, CHANGE 10
PITCH AXIS MALFUNCTION (CONT)
10. Stall Warning System: STALL WARNING Switches — ON, one
at a time, to isolate malfunctioning system. If malfunction recurs,
set appropriate switch OFF.
• An abrupt nose-down control column movement is
evidence of a stick pusher malfunction.
• Below M
MO, a nose-up tendency is evidence of a
stick puller malfunction.
•If both STALL WARNING switches are OFF:
a. Maintain airspeed at least 30 knots above stall speeds shown in
Section V. VREF may be maintained on final approach in the
landing configuration.
b. Limit bank angles to 30° maximum.
• If L STALL WARNING switch is OFF, stick puller is inoperative —
Do not exceed M
MO (0.74 MI).
• If malfunction does not recur, probable cause of malfunction was
the autopilot (if autopilot was engaged). Do not engage
autopilot.
11. If malfunction has not been isolated to autopilot:
a. AUTOPILOT Switch — On.
b. Autopilot — As desired.
12. Yaw Damper (PRI or SEC) — Check engaged.
If malfunction was isolated to L STALL, use SEC yaw
damper. If malfunction was isolated to R STALL use PRI
yaw damper.
NOTE
NOTE
, CHANGE
10