Piper Malibu PA-46-310P Pilot Operating Handbook page 446

PIPER AIRCRAFT CORPORATION
PA-46-310P, MALIBU
SECTION9
SUPPLEMENT 10
SECTION 4 - NORMAL PROCEDURES
The Piper Malibu is approved for llight into known icing conditions
when equipped with the complete Piper Ice Protection System. Operating in
icing conditions of Continuous Maximum and Intermittent Maximum as
defined in FAR 25, Appendix C has been substantiated; however, there is
no correlation between these conditions and forecasts of reported "Light.
Moderate and Severe" conditions.
Flight into severe icing is not approved.
Icing conditions can exist in any clouds when the temperature is hclow
freezing; therefore it is necessary to closely monitor outside air temperature
when nying in clouds or precipitation. Clouds which arc dark and have
sharply defined edges usually have high water content and should be avoided
whenever possible.
Freezing rain must always be avoided.
Pneumatic boots must be cleaned regularly for proper operation in
icing. The exterior surfaces of the aircraft should be checked prior
to
flight.
Do not attempt night with frost, ice or snow adhering to the exterior
surfaces of the aircraft or landing gear.
Prior to dispatch into forecast icing conditions all ice protection equip-
\,,,.,/ ment should be functionally checked for proper operation.
PREFLIGHT
(a) An operational check of the heated windshield panel is accom-
plished by turning the WSHD HEAT switch ON for a period not
exceeding 30 seconds. Proper operation is indicated by the heated
panel being warm to the touch.
NOTE
A safety feature prevents activation of the panel
at ambient temperatures above approximately
75°F. In this case an operational check must be
performed in flight by turning the WSHD HEAT
switch ON and observing the ammeter for an
increase in load.
(b) A check of the heated propeller should be performed by turning the
'..._,) PROP HEAT switch ON and feeling the deice pads. The pads
should become warm to the touch.
ISSUED: JULY 30, 1984
REVISED: OCTOBER 15, 1997
REPORT: VB-1200
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