[U~lA1ffiDrnTI
I;~
PITCH AXIS MALFUNCTION
A nose-up pitch axis malfunction or nose-up pitch trim system runaway can
result
in
extremely high pitch attitudes, heavy airframe buffet, and require
control forces
in
excess of
75
pounds
for
recovery.
A nose-down pitch axis malfunction, nose-down pitch trim system runaway.
or nose-down overspeed can result
in
extremely high airspeeds and require
control forces
in
excess
of
75
pounds
for
recovery.
A binding elevator
is
evidenced
by
difficulty
in
mOving
the control column
when making manual pitch changes.
•
Do
not extend spoilers during any nose-down pitch
upset at any speed due to significant nose-down
pitching moment associated with spoiler
deploy-
ment.
• On any speed excursion beyond
MMO,
the elevator
control must be smoothly and steadily applied to
pre-
vent encountering excessive aileron activity and
air-
frame buffet. Beyond
MMO.
a
1.5
g pull-up may
be
sufficient
to
excite aileron activity and the g level
must be limited to that required to maintain lateral
control.
Control pressures may be
heavy. Copilot assistance
is
recommended with this procedure.
;-
-1:-
-
co~iro'-WheeiMaster
Switch
(MSW)
';:-Dep~;;
a"i.d
hOld:-~
, . .
:
~~
• Yaw damper and autopilot will disengage. :
-,
,
: •
PRJ
pitch trim will
be
inoperative while
the,
: switch is held. :
:
2.
Attitude Control - As required
to
maintain aircraft:
, control. ,
, •
If
in nose-up attitude. roll into bank or maintain existing:
: bank until
the
aircraft
nose
passes
through
the
horizon. ,
:
·If
in nose-down attitude, level the wings before pulling
the:
,
nose
up. ,
,
3.
Thrust Levers - As required. :
:
.If
in high-speed nose-down attitude. immediately
reduce,
, thrust levers
to
IDLE
position. ,
: •
If
near stall, advance thrust levers
as
required
to
acceler-:
,
ate
out
of
stall regime. ,
,------------~---------------------~----~
3-38
FAA APPROVED 4-30-76
REISSUED
2-25-81. CHANGE
10
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