Piper Malibu PA-46-310P Pilot Operating Handbook page 43

98-04-26
TH
AD. .. E NEW PIPER AIRCRAF
T CORPORATION· A~l,jk
~
.
Amendment
39-/0338· D k
If
iW.
' l ly: Models
PA-46-JJOP
and
PA-46-3
Jp .
l . .
oc et
1'~97-CE-60-
category.
J
airp
anes
(all
senal
numbers), certificated in any
NOTE 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of
whether it has been modifie~ altered, or repaired in the area subject to the requirements of this AD. For airplanes
that have been modified, altere~ or repaired so that the perfonnance of the requirements of this AD is affected. the
owner/operator must request approval for an alternative method of compliance in accordance with paragraph (
d)
of
this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the
unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should
include specific proposed actions to address it.
Compliance: Required as indicated, unless already accomplished.
To minimize the potential hazards associated with operating the airplane in severe icing conditions by
providing more clearly defined procedures and limitations associated with such conditions, accomplish the
following:
(a) Within 30 days after the effective date ofthis AD, accomplish the requirements of paragraphs (a)(l)
and (a)(2) of this AD.
NOTE 2: Operators should initiate action to notify and ensure that flight crewmembers are apprised of this
change.
(1) Revise the FAA-approved Airplane Flight Manual (AFM) by incorporating the following into
the Limitations Section of the AFM. This may be accomplished by inserting a copy of this AD in the AFM.
"WARNING
Severe icing may result from environmental conditions outside of those for which the airplane is certificated.
Flight in freezing
rain,
freezing driz.zle, or mixed icing conditions (supercooled liquid water and ice crystals)
may result in ice build-up on protected surfaces exceeding the capability of the ice protection system, or may
result in ice fonning aft of the protected surfaces. This ice may not be shed using the ice protection systems,
and may seriously degrade the perfonnance and controllability of the airplane.
• During flight, severe icing conditions that exceed those for which the airplane is certificated shall be
determined by the following visual cues. If one or more of these visual cues exists, immediately request
priority handling from Air Traffic Control to
facilitate
a route or an altitude change to exit the icing
conditions.
Unusually extensive ice accumulation on the airframe and windshield in areas not nonnally observed
to collect ice.
Accumulation of ice on the upper surface of the wing aft of the protected area.
• Since the autopilot, when installed and operating, may mask tactile cues that indicate adverse changes
in handling characteristics, use of the autopilot is prohibited when any of the visual cues specified above
exist, or when unusual lateral trim requirements or autopilot trim warnings are encountered while the
airplane is in icing conditions.
• All wing icing inspection lights must be operative prior to flight into known or forecast icing
conditions at night. [NOTE: This supersedes any relief provided by the Master Minimum Equipment List
(MMEL).]"
(2) Revise the FAA-approved AFM by incorporating the following into the Nonnal Procedures
Section of the AFM. This may be accomplished by inserting a copy of this AD in the AFM.
"THE FOLLOWING WEATHER CONDITIONS
MAY BE CONDUCIVE TO SEVERE
IN-FLIGHT ICING:
• Visible rain at temperatures below O degrees Celsius ambient air temperature.
• Droplets that splash or splatter on impact at temperatures below O degrees Celsius ambient air
temperature.