Piper Malibu PA-46-310P Pilot Operating Handbook page 419

SECTION 9
SUPPLEMENT 8
SECTION 1 - GENERAL
PIPER AIRCRAFT CORPORATION
PA-46-310P, MALIBU
This supplement supplies information necessary for the operation of the
airplane when the optional prop heat. heated windshield panel, and wing
~
ice detection light are installed in accordance with .. FAA Approved" Piper
data.
SECTION 2 - LIMIT A TIO NS
(a) This aircraft is not approved for flight in icing conditions.
(b) Under no circumstances should the heated windshield panel be
turned on for a period exceeding 30 seconds unless the aircraft is in
flight.
SECTION 3 - EMERGENCY PROCEDURES
No change.
SECTION 4 - NORMAL PROCEDURES
Prior to flight, the equipment should be functionally checked for proper
operation.
An operational check of the heated windshield panel is accomplished by
turning the WSHD HEAT switch ON for a period not exceeding30seconds.
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 WSH D
HEAT switch ON and observing the ammeter
for an increase in load.
A check of the heated propeller can be performed by turning the PROP
HEAT switch ON and feeling the de-ice pads. The pads should become
warm to the touch.
REPORT: VB-1200
ISSUED: APRIL 30, 1984
9-78, 2 of 6