Piper Malibu PA-46-310P Pilot Operating Handbook page 447

SECTION9
SUPPLEMENT 10
PIPER AIRCRAFT CORPORATION
PA-46-JlOP, MALIBU
CAUTION
Care should be taken when an operational
check of the heated pitot head and heated lift
detector is being performed. The units become
very hot.
(c) A check of the heated pilot head and lift detector should be per-
formed by turning the S. WRN HEAT and PITOT HEAT switches
ON and touching the units.
(d) The surface boots should be checked prior to flight for damage and
cleanliness. If necessary, damage should be repaired and boots
cleaned prior to flight. An operational check of the boot system
should be performed during engine run-up at 2000 RPM as follows:
( I) Actuate the momentary SURF DEICE switch - the boots will
inflate through three phases: empennage, lower wing and upper
wing with a duration of approximately six seconds per phase.
The surface boot system then remains off until the switch is
activated again. A green SURFACE DEICE annunciator light
will remain on for approximately eighteen seconds.
(2) Visually check to insure that the boots have fully deflated to
1.
1
indicate proper operation of the vacuum portion of the
~
pneumatic boot pump system.
(e) The dual alternators should be checked by cycling the A/V (volt/
ammeter) switch and observing for indication of output from both
alternators on the ammeter.
(I) The standby vacuum pump should be checked during engine run-up
by turning the STANDBY VAC PUMP switch ON and observing
that the right side red flow button on the gyro suction gauge
disappears.
INFLIGHT
Icing conditions of any kind should be avoided whenever possible, since
any minor malfunction which may occur is potentially more serious in icing
conditions. Continuous attention of the pilot is required to monitor the rate
of ice build-up in order to effect the boot cycle at the optimum time. Boots
should be cycled when ice has built to between and inch thickness on
the leading edge to assure proper ice removal. Repeated boot cycles at less
REPORT: VB-1200
9-92, 6 of 16
ISSUED: JULY 30, 1984
REVISED: OCTOBER 15, 1997