Piper Malibu PA-46-310P Pilot Operating Handbook page 63

AIR~THINESS DIRECTIVE
REGULATORY SUPPORT DIVISION
P.O. BOX 26460
OKLAHOMA CllY, OKLAHOMA 73125-0460
U.S. Department
of Transportation
Federal Aviation
Administration
The
following Altwofthiness Directive issued
by
lhe Federal Aviation Adminisltalion in accordance
with
the provisions of Federal Aviation Regulations, Pert 39, applies to an airt:taft
model of which our records indicate you may be lhe registered
owner.
Aitwolthiness Directives affect aviation safety and
an,
regulations which requite immediate attention. You are
cautioned that no person may operate an araafl lo which an Aitwolthiness Directive applies, except in 8CCOldance with the requirements of the Airwonhiness Diredlve (reference
FAR Subpart 39.3).
98-04-26 THE NEW PIPER AIRCRAFT CORPORATION:
Amendment 39-10338; Docket No. 97-CE-60-AD.
Applicability: Models PA-46-3 lOP and PA-46-350P airplanes
(all
serial numbers), certificated in any
category-.
NOTE 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of
whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For
airplanes that have been modified, altered, or repaired so· that the performance 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 of this 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-wmch-the-airplane--is
certificated. Flight in freezing rain, .freezing drizzle, or mixed icing conditions (supercooled liquid water
. and ice ccystals) may result in ice build-up on protected surfaces exceeding the capability of the ice
protection system, or may result in ice forming aft of the protected surfaces. This ice may not be shed
using the ice protection systems, and may seriously degrade the performance 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 normally
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). )9
(2) Revise· the FM-approved AFM by incorporating the following into the Normal Procedures
Section of the AFM. This may be accomplished by inserting a copy of this AD in the AFM.