Beechcraft C23 SUNDOWNER 180 Pilot Operating Handbook page 226

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or;
wARNING
e
EMERGENCY AIRSPEED STATIC SOURCE
SEE FUGHT MANUAL
NORMAL
EMERGENCY PROCEDURES
OFF
FOR AIRSPEED AT.TlMETER
CAUBRATION ERROR
ONE
EMERGENCY
EMERGENCY PROCEDURES
Whenever
any obstruction exists
in
the
Normal
Static
Air
System,
or the
Emergency Static Air
System
is desired for
use:
1.
Pilot's Emergency Static Air Source
-
Switch
to
ON
EMERGENCY (lower
sidewall adjacent to
pilot)
2. For
airspeed calibration and altimeter correction,
refer
to
AIRSPEED CALIBRATION-EMERGENCY SYSTEM
and
ALTIMETER
CORRECTION-EMERGENCY
SYSTEM graphs in
the
PERFORMANCE section.
CAUTION
Be
certain the emergency
static
air
valve
is in
the
OFF NORMAL position when
system
is
not
needed.
NORMAL PROCEDURES
-
No
change.
FAA Approved
Date: June 2,
1978
2
of
5
P/N
MCO
C32644-11

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