98-20-38 R1 Raytheon Aircraft Company: Amendment 39-13946; Docket No. FAA-2004-19078; Directorate Identifier 98-CE-17-AD.
When Does This AD Become Effective?
(a) This AD becomes effective on February 18, 2005.
What Other ADs Are Affected by This Action?
(b) This AD revises AD 98-20-38, Amendment 39-10806.
What Airplanes Are Affected by This AD?
(c) This AD affects the following airplane models, all serial numbers, that are certificated in any category:
(1) Beech 200 (A100-1 (U-21J)).
(2) Beech 200C.
(3) Beech 200CT.
(4) Beech 200T.
(5) Beech A200 (C-12A) or (C-12C).
(6) Beech A200C (UC-12B).
(7) Beech A200CT (C-12D), (FWC-12D), (RC-12D), (C-12F), (RC- 12G), (RC-12H), (RC-12K), or (RC-12P).
(8) B200CT.
(9) B200T.
Note 1: The actions of AD 96-09-13 are required for the Beech Models B200 and B200C airplanes.
What Is the Unsafe Condition Presented in This AD?
(d) The actions specified in this AD are intended to minimizethe potential hazards associated with operating these airplanes in severe icing condition by providing more clearly defined procedures and limitations.
What Must I Do To Address This Problem?
(e) Within 30 days after November 4, 1998 (the effective date of AD 98-20-38), do the requirements of paragraphs (e)(1) and (e)(2) of this AD, unless already accomplished.
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 drizzle, or mixed icing conditions (supercooled liquid water and ice crystals) may result in ice build-up on protected surfaces exceeding thecapability 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.
--Accumulation of ice on the engine nacelles and propeller spinners farther aft than normally observed.
Since the autopilot, when installed and operating, may mask tactile cues that indicate adverse changes in handlingcharacteristics, 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 Normal 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 0 degrees Celsius ambient air temperature.
Droplets that splash or splatter on impact at temperatures below 0 degrees Celsius ambient air temperature.
Procedures for Exiting the Severe Icing Environment
These procedures are applicable to all flight phases from takeoff to landing. Monitor the ambient air temperature. While severe icing may form at temperatures as cold as -18 degrees Celsius, increased vigilance is warranted at temperatures around freezing with visible moisture present. If the visual cues specified in the Limitations Section of the AFM for identifying severe icing conditions are observed, accomplish the following:
Immediately request priority handling from Air Traffic Control to facilitate a route or an altitude change to exit the severe icing conditions in order to avoid extended exposure to flight conditions more severe than those for which the airplane has been certificated.
Avoid abrupt and excessive maneuvering that may exacerbate control difficulties.
Do not engage the autopilot.
If the autopilot is engaged, hold the control wheel firmly and disengage the autopilot.
If an unusual roll response or uncommanded roll control movement is observed, reduce the angle-of-attack.
Do not extend flaps when holding in icing conditions. Operation with flaps extended can result in a reduced wing angle-of- attack, with the possibility of ice forming on the upper surface further aft on the wing than normal, possibly aft of the protected area.
If the flaps are extended, do not retract them until the airframe is clear of ice.
Report these weather conditions to Air Traffic Control."
(f) As an alternative method of compliance to the actions required by paragraph (e)(2) of this AD, revise the Abnormal Procedures Section or Emergency Procedures Section of the AFM instead of the Normal Procedures section of the AFM. Insert the information presented in paragraph (e)(2) of this AD into the applicable AFM section.
(g) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may incorporate the AFM revisions required by this AD. Enter this information into the aircraft records showing compliance with this AD following section 43.9 of the Federal Aviation Regulations (14 CFR 43.9).
May I Request an Alternative Method of Compliance?
(h) You may request a different method of compliance or a different compliance time for this AD by following the procedures in 14 CFR 39.19. Unless FAA authorizes otherwise, send your request to your principal inspector. The principal inspector may add comments and will send your request to the Manager, Standards Office, Small Airplane Directorate, FAA. For information on any already approved alternative methods of compliance, contact Mr. Paul Pellicano, Aerospace Engineer (Icing Specialist), Atlanta Aircraft Certification Office, FAA, One Crown Center, 1895 Phoenix Boulevard, Suite 450, Atlanta, Georgia 30349; telephone: (770) 703-6064; facsimile: (770) 703-6097.
May I Get Copies of the Documents Referenced in This AD?
(i) You may view the AD docket at the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC, or on the Internet at http://dms.dot.gov.