111.111
•••••
1
SYSTEM
LIMITS
STALL WARNING SYSTEM
Both stall warning systems must
be
on
and operating
and
remain
on
throughout flight. The systems may be turned off
per
EMERGENCY
and
ABNORMAL PROCEDURES
in
Section
IU
and Section
IV
of this manual
and for
stall
warning system maintenance per the Maintenance Manual
procedures.
:
NOTE:~
Warning lights for both stall warning systems are in-
operative when the generator
and
battery switches
are OFF.
To assure proper stall warning system operation, the BEFORE STARTING
ENGINES
and
AFTER TAKEOFF
stall
warning system operation
and
comparison checks must
be
accomplished
in
accordance with Section
II
of
this manual.
TRIM
SYSTEMS
Pitch trim runaway training that actually involves running the
trim
in
flight
to simulate malfunctions
is
prohibited.
To assure proper trim systems operation, the BEFORE STARTING
ENGINES trim systems checks must be successfully completed
before each
flight.
IWARN~'lGt
Failure to conduct a complete pitch· trim preflight
chl?ck
prior to
each
flight
increases the probability
of
an
undetected system failure. An additional single
failure
in
the trim system could result
in
a
trim
run-
away.
In
certain critical
flight
conditions, an un-
restricted runaway could result
in
high speeds, severe
buffet,
wing
roll off, loads
in
excess
of
structural
limit, and extremely high forces necessary for
recovery.
FAA
APPROVED 4-30-76
REISSUED 2-25-81, CHANGE 6
1-15
I
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