COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Fokker F100 (F28 Mk 100) 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/F100/34 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.
AD/F100/34
Amdt 2
Nose Landing Gear Main Fitting 4/2000
Applicability: Model F.28 Mk. 0100 aircraft, all serial numbers, if Messier-Dowty Part Number (P/N) 201071001 or P/N 201071002 Nose Landing Gear Units are installed, which include Main Fitting Sub-Assemblies P/N 201071200, 201071228, 201071248, or
201071249.
Requirement: Inspect in accordance with RLD AD 1997-116/2.
Note: Messier-Dowty Service Bulletin (SB) F100-32-92 Revision 1 and Fokker SB F100-32-118 refer.
Compliance: As specified in the Requirement document for the initial and repetitive inspections, with a revised effective date of 31 December 1999.
The compliance time of the previous issue of this Directive remains unchanged by this amendment.
This Amendment becomes effective on 20 April 2000.
Background: The RLD received a report concerning a Mk. 0100 aircraft, where during landing, immediately after nose wheel touchdown, the nose landing gear broke off, just below the nose landing gear pintle. Inspections of other aircraft revealed cracks on the inner side of the right hand downlock plunger support web.
Amendment 1 responded to a revision of the related RLD AD which was prompted by reports of three more cases of cracks in the nose landing gear main fitting area of the downlock plunger support webs, found during maintenance. As a consequence, the RLD AD required an initial visual inspection of the affected parts and subsequent NDT inspection, and introduced a repetitive NDT inspection and, if necessary, rework or replacement of the nose landing gear main fitting.
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Amendment 2 is issued to change the Requirement note to more accurately reflect the AD associated requirement documents.
Amendment 1 of this Airworthiness Directive became effective on 31 December 1999.
The original issue of this Airworthiness Directive became effective on 12 August 1999.
Bernard Malcolm Hole
Delegate of the Civil Aviation Safety Authority 10 March 2000
The above AD is notified in the Commonwealth of Australia Gazette on 22 March 2000.
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), are designed to ensure the safety and airworthiness of aircraft operating in Australian airspace. This legislation is vital for maintaining the high standards of aviation safety in Australia, ensuring that aircraft are operated in a manner that minimises risks to passengers, crew, and the public. The Civil Aviation Regulations 1998 were enacted by the Australian Parliament and are overseen by the CASA, whose primary objective is to regulate and ensure compliance with safety standards within the civil aviation sector. One significant aspect of this regulation is the issuance of Airworthiness Directives (ADs), which are mandatory orders to address identified safety issues in specific aircraft types. For instance, AD/F100/34 Amdt 2 addresses a critical safety concern related to the nose landing gear of Fokker F100 (F28 Mk 100) series aeroplanes, following reports of structural failures and cracks in the nose landing gear main fitting area. The AD mandates specific inspections and maintenance actions to mitigate these risks, ensuring the continued safe operation of these aircraft.
Scope and Application
The Civil Aviation Regulations 1998, as part of the legislative instrument F2006B09636, pertain specifically to the Fokker F100 (F28 Mk 100) series aeroplanes, focusing on airworthiness directives that ensure safety and compliance within the aviation industry. This particular Airworthiness Directive (AD/F100/34 Amdt 2) applies to all Fokker F100 aircraft models, specifically those with Messier-Dowty Part Numbers 201071001 or 201071002 for the nose landing gear units. The directive mandates inspections of the nose landing gear main fittings as per specified instructions to mitigate safety risks identified in previous incidents where the nose landing gear broke off during landing. The directive's jurisdictional reach is federal, issued by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998, and it is applicable nationwide. The directive outlines specific compliance timelines and inspection procedures, ensuring that the identified unsafe conditions are rectified in a timely manner to maintain the airworthiness of the affected aircraft. This legislation underscores the importance of rigorous safety protocols and adherence to specified maintenance procedures to ensure the safety of air travel within Australia.
Key Provisions
The Civil Aviation Regulations 1998, Part 39 - 105, specifically addresses Airworthiness Directives (ADs) for Fokker F100 (F28 Mk 100) series aeroplanes, with a focus on the nose landing gear main fitting. The AD under review, AD/F100/34 Amdt 2, revokes its previous amendment (AD/F100/34 Amdt 1) and introduces new inspection requirements to ensure the safety of the aircraft's nose landing gear. This AD applies to all Fokker F28 Mk 100 aircraft equipped with specific Messier-Dowty Nose Landing Gear Units and their respective main fitting sub-assemblies (Section 1).
The directive mandates that affected aircraft undergo inspections in accordance with RLD AD 1997-116/2, with references to relevant service bulletins from Messier-Dowty and Fokker (Section 2). Compliance with these inspection requirements must be achieved in alignment with the specified timeframes outlined in the requirement document, with an effective date set for 31 December 1999. The AD also notes that the compliance period for the previous issue remains unchanged by this amendment, and it becomes effective on 20 April 2000 (Section 3).
Operators and owners of the affected Fokker F28 Mk 100 aircraft must ensure that the required inspections are conducted by certified personnel and in accordance with the instructions provided in the AD. Failure to comply with the inspection requirements may result in the aircraft being deemed unairworthy, potentially leading to grounding until the necessary inspections and repairs are completed. The AD serves as a critical safety measure, responding to incidents where the nose landing gear broke off during landing, highlighting the importance of regular inspections to prevent similar occurrences (Section 4).
The AD does not explicitly outline specific penalties for non-compliance; however, under the broader Civil Aviation Regulations 1998, failure to adhere to ADs can result in enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions can include fines, legal proceedings, and potential revocation of the aircraft's certificate of airworthiness. The severity of penalties will depend on the nature and extent of the non-compliance, but operators must prioritise adherence to ADs to ensure the continued safety and airworthiness of their aircraft (Section 5).