AD/BEECH 55/79 Amdt 2 - Wing Bolt, Nut and Fitting

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B04024 Not in force Legislative Instrument

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AIRWORTHINESS DIRECTIVE


For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BEECH 55/79 Amdt 1 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.

 

Beechcraft 55, 58 & 95-55 Series Aeroplanes

 

AD/BEECH 55/79

Amdt 2


Wing Bolt, Nut and Fitting 2/2002

 

 

Applicability: All models.

 

Requirement: 1. Remove and inspect the wing bolts, washers, nuts and fittings in accordance with Beechcraft Baron Shop Manual 55-590000-13E17 as revised 28 October 1999, Section 3, for model 55 and 58 series; or Baron Maintenance Manual 102- 590000-5A23 as revised 28 February 1989, Section 57-00-00, for model 58P and TC series.

 

2. Retire wing bolts, washers and nuts from service and replace with new hardware in accordance with Beechcraft Baron Shop Manual 55-590000-13E17 Section 3 or Maintenance Manual 102-590000-5A23 Section 57-00-00 as applicable. Render unserviceable all hardware retired.

 

Note: The bolt torque should be checked before replacement to confirm bolt has been torqued to correct value. If the torque value is incorrect, other maintenance action may be required.

 

Compliance: 1. Unless inspection has already been accomplished in accordance with the Requirement Document, initially inspect before 5 calendar years from initial installation. Re-inspect at intervals not to exceed 5 calendar years.

 

2. Retire before 15 calendar years after initial installation.

 

Where the date of initial installation is unknown, the date of manufacture of the aircraft must be used for paragraphs 1 and 2.

 

This amendment becomes effective on 21 February 2002.

 

Background:  The initial issue of this Airworthiness Directive became effective on 1 February 1996 and made mandatory the inspection and replacement periods for the wing attachment hardware as detailed in the requirement document.

 

Amdt 1 - Updates the revision status of the Beech 55 Shop Manual

 

Amdt 2 - Adds the Note to requirement 2 and the fittings as an item to be inspected when the wing bolts, washers and nuts are removed and inspected.

 

Beechcraft 55, 58 & 95-55 Series Aeroplanes

 

AD/BEECH 55/79 Amdt 2 (continued)

 

Amendment 1 of this Airworthiness Directive became effective on 30 November 2000.


 

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 3 January 2002

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


The above AD is notified in the Commonwealth of Australia Gazette on 30 January 2002.

Overview

The Civil Aviation Safety Authority (CASA) introduced the Airworthiness Directive (AD) AD/BEECH 55/79 Amdt 2 in 2002 to address safety concerns associated with the wing bolts, washers, nuts, and fittings of Beechcraft 55, 58, and 95-55 series aeroplanes. This directive was enacted to mandate the inspection, replacement, and retirement of specified wing attachment hardware to ensure ongoing airworthiness and safety of the aircraft. CASA, acting under subregulation 39.1(1) of the Civil Aviation Regulations 1998, issued this amendment to correct unsafe conditions identified in the aircraft's maintenance. The policy objective of this AD is to enhance aviation safety by ensuring that the specified components are maintained and serviced according to the prescribed intervals and procedures outlined in the Beechcraft maintenance manuals. This amendment revokes the previous AD/BEECH 55/79 Amdt 1 and incorporates updated inspection and replacement requirements, including a note on bolt torque verification and the addition of fittings to the inspection scope.

Scope and Application

This Airworthiness Directive applies to all models of the Beechcraft 55, 58, and 95-55 series aeroplanes. It mandates that specific action must be taken in relation to the wing bolts, washers, nuts, and fittings of these aircraft to correct an identified unsafe condition. The directive is issued by a delegate of the Civil Aviation Safety Authority under the Civil Aviation Regulations 1998 and is applicable within the Commonwealth of Australia. The requirements of the directive include the initial inspection of the wing bolts, washers, nuts, and fittings within five years of the aircraft's initial installation or manufacture, if the installation date is unknown, and subsequent inspections at intervals not exceeding five years thereafter. Wing bolts, washers, and nuts must be retired from service and replaced with new hardware within fifteen years of initial installation or manufacture, with any retired hardware rendered unserviceable. The directive also notes the importance of checking bolt torque prior to replacement and indicates that other maintenance actions may be required if the torque is incorrect. The Airworthiness Directive is effective from 21 February 2002, as notified in the Commonwealth of Australia Gazette on 30 January 2002.

Key Provisions

The Airworthiness Directive (AD) AD/BEECH 55/79 Amdt 2, issued by the Civil Aviation Safety Authority (CASA) delegate, applies to all models of the Beechcraft 55, 58, and 95-55 series aeroplanes. The AD mandates specific actions to address an unsafe condition related to the wing bolts, washers, nuts, and fittings of these aircraft. As per section 2 of the AD, the requirement is for operators to inspect and replace the wing attachment hardware. This involves removing and inspecting the wing bolts, washers, nuts, and fittings in accordance with the Beechcraft Baron Shop Manual 55-590000-13E17 or the Maintenance Manual 102-590000-5A23, depending on the model. Additionally, any retired hardware must be replaced with new components, and the unserviceable hardware must be rendered unusable. It is also important to check the bolt torque before replacement to ensure it meets the correct value, with other maintenance actions potentially required if it is incorrect. The AD imposes specific obligations on the operators of the Beechcraft 55, 58, and 95-55 series aeroplanes. Operators must conduct an initial inspection of the wing bolts, washers, nuts, and fittings within five calendar years from the initial installation or from the date of manufacture if the installation date is unknown. Subsequent inspections must occur at intervals not exceeding five calendar years. The AD further mandates that the wing bolts, washers, and nuts be retired from service within 15 calendar years from the initial installation or the date of manufacture, if the former is unknown. Compliance with these inspection and retirement schedules is crucial to maintaining the airworthiness of the aircraft. Breach of the requirements stipulated in AD/BEECH 55/79 Amdt 2 may lead to civil or criminal consequences. Under the Civil Aviation Safety Regulations 1998 (CAR 1998), failure to comply with an AD can result in significant penalties. The specific penalties are not outlined in the AD but can include substantial fines and potential legal action. The severity of the penalty can depend on the extent of the non-compliance and its impact on the safety of the aircraft. Operators are therefore obligated to strictly adhere to the inspection and replacement schedules to avoid any legal repercussions.

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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.