AD/BEECH 65/67 Amdt 1 - Aircraft Flight Manual, Flight into Icing Conditions

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Legislation au F2006B04161 In force Legislative Instrument

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Beechcraft 65 and 70 (Queen Air) Series Aeroplanes

 

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BEECH 65/67 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

 

AD/BEECH 65/67

Amdt 1


Aircraft Flight Manual, Flight into Icing Conditions


7/2000

 

Applicability: Model 65-B80 all serial numbers. Requirement:  Revise:

  1. the Limitations Section of the aircraft's Aircraft Flight Manual (AFM) by incorporating the following:

 

"WARNING"

Severe icing may result from environmental conditions outside of those for which the aircraft is certificated.

 

Flight in freezing rain, freezing drizzle, or mixed icing conditions (super cooled liquid water and ice crystals) may result in:

 

  • ice build-up on protected surfaces and exceed the capability of the ice protection system, or

 

  • 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 aircraft.

 

During flight, severe icing conditions that exceed those for which the aircraft is certificated shall be determined by the visual cues described below. 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. The cues are:

 

  • unusually extensive ice accumulation on the airframe and windscreen in areas not normally observed to collect ice, and/or

 

  • accumulation of ice on the upper surface of the wing aft of the protected area, and/or

 

  • accumulation of ice on the engine nacelles and propeller spinners farther aft than normally observed.

 

 

Since the auto-pilot, when installed and operating, may mask tactile cues that indicate adverse changes in handling characteristics, use of the auto-pilot is prohibited when any of the visual cues specified above exist, or when unusual lateral trim requirements or auto-pilot trim warnings are encountered while the aircraft is in icing conditions.

 

All wing icing inspection lights must be operative prior to flight into known or forecast icing conditions at night. This direction supersedes any relief provided  by any Minimum Equipment List.

 

2.    the Normal Procedures Section of the AFM by incorporating the following:

 

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 A SEVERE ICING

ENVIRONMENT: (These procedures are applicable to all flight phases from take-off 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 when visible moisture is present.

 

 

If the visual cues which are 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 aircraft has been certificated.

 

  • Avoid abrupt and excessive manoeuvring that may exacerbate control difficulties.

 

  • Do not engage the autopilot.
  • If the autopilot had previously been engaged, hold the control wheel firmly and disengage the autopilot.

 

  • If an unusual roll response or un-commanded 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.

Note 1: Certificate of Registration holders should initiate action to ensure notification of this change is conveyed to any person who may operate their aircraft as pilot in command.

 

Note 2: FAA AD 98-04-24 refers.

 

Certification for accomplishment of this Directive may be carried out:

 

  1. after a copy of this Directive is included in the appropriate sections of the aircraft's AFM; and

 

b.        may be carried out at a minimum, by the holder of a private pilot's licence.

 

 

Compliance: Within 30 days after the effective date of this Amendment.

 

This Amendment becomes effective on 13 July 2000.

 

Background:  This Directive is issued to minimise the potential hazards associated with operating the aircraft in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.

 

Amendment 1 is raised to correct a word processing error in the initial issue.

 

The original issue of this Airworthiness Directive became effective on 23 March 2000.


 

Bernard Malcolm Hole

Delegate of the Civil Aviation Safety Authority 31 May 2000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


The above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.

Overview

The Airworthiness Directive (AD) AD/BEECH 65/67, issued in 2000 by the Civil Aviation Safety Authority (CASA) as a legislative instrument under the Civil Aviation Act 1988, addresses the problem of inadequate procedures and limitations for operating Beechcraft 65 and 70 series aeroplanes in severe icing conditions. This directive was enacted to ensure the safe operation of these aircraft by clearly defining the necessary precautions and procedures to be taken in such hazardous conditions. The AD requires the revision of the Aircraft Flight Manual to incorporate specific warnings and procedures for severe icing, ensuring that pilots are well-informed and capable of managing the risks associated with flight into icing conditions. The directive aims to mitigate the hazards posed by severe icing by providing clear, actionable guidelines, thereby enhancing the overall safety of aviation operations within Australia.

Scope and Application

The Beechcraft 65 and 70 (Queen Air) Series Aeroplanes Airworthiness Directive, issued under subregulation 39.1(1) of the Civil Aviation Regulations 1998, applies specifically to all Beechcraft 65-B80 aircraft with all serial numbers. The directive mandates revisions to the Aircraft Flight Manual (AFM) to address the risks associated with severe in-flight icing conditions. This involves updating the Limitations and Normal Procedures sections of the AFM to include specific warnings, visual cues, and operational procedures to ensure pilots can safely identify and navigate out of severe icing conditions. The directive also explicitly prohibits the use of the autopilot in such conditions and requires all wing icing inspection lights to be operational before night flights in known or forecast icing conditions. Compliance with this directive must be achieved within 30 days from its effective date of 13 July 2000. This legislative instrument extends its reach nationally within the Commonwealth of Australia and applies to all registered aircraft of the specified model and series.

Key Provisions

This Airworthiness Directive (AD) AD/BEECH 65/67 applies to all Beechcraft 65-B80 series aeroplanes (section 1). The AD mandates revisions to the Aircraft Flight Manual (AFM) of the specified aircraft to include more detailed procedures and limitations for operating in severe icing conditions (section 2). Specifically, it requires updating the Limitations Section to warn of the dangers of severe icing conditions that may exceed the aircraft's certification limits and to specify visual cues for recognising severe icing, such as extensive ice accumulation in non-typical areas and ice on surfaces aft of the protected area (section 2(a)). It also requires updating the Normal Procedures Section to include procedures for exiting severe icing conditions, such as requesting priority handling from Air Traffic Control and avoiding abrupt manoeuvres and the use of the autopilot (section 2(b)). Certification of compliance with this AD may be carried out by the aircraft's Certificate of Registration holder or by a person holding a private pilot's licence (section 2(c)). The AD imposes obligations on the Certificate of Registration holders of the affected aircraft to ensure the specified changes are made to the AFM within 30 days of the AD's effective date of 13 July 2000 (section 3). The AD also requires holders to notify any person who may operate the aircraft as pilot in command of these changes (section 2, Note 1). Compliance with the AD is mandatory, and failure to comply may result in the aircraft being deemed unairworthy and potentially grounding the aircraft until compliance is achieved (implied by the requirement to update the AFM and the reference to certification for compliance). There are no specific offences, penalties, or consequences stated in this AD for failure to comply. However, operating an aircraft that does not comply with applicable ADs could lead to enforcement actions by the Civil Aviation Safety Authority (CASA), including potential fines, suspension or revocation of the aircraft's Certificate of Airworthiness, and other regulatory consequences (implied by the mandatory nature of ADs and CASA's authority under the Civil Aviation Act 1988 and Civil Aviation Regulations 1998). The specific penalties for non-compliance would depend on the nature and severity of the non-compliance and any resulting safety issues.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.