AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/F100/52 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.
Fokker F100 (F28 Mk 100) Series Aeroplanes
AD/F100/52
Amdt 2
Passenger Door Status Lights 3/2003
Applicability: Model F.28 Mk.0070 and Mk.0100 aeroplanes with serial numbers listed in Fokker Service Bulletin (SB) F100-52-069 Revision 3 dated 18 December 2002.
Requirement: Install additional passenger door status light indicators and new placards in accordance with Section 2, Part 1, 2 or 3 (as applicable) of SB F100-52-069 Revision 3.
Note 1: The following Fokker Services’ Manual Change Notifications, both dated 3 December 2001, also pertain to this subject:
Maintenance Documentation (MCNM) F100-064, and Operational Documentation (MCNO) F100-031.
Note 2: CAA-NL (Netherlands) AD (BLA) 2002-057 (A) refers.
Compliance: Before 1 December 2004.
This Amendment becomes effective on 20 March 2003.
Background: The CAA-NL of The Netherlands has advised that several instances have been reported of Fokker 100 ‘airstair’ type passenger doors opening during flight.
Investigations have concluded that these instances were not due to defects in the design of the operating mechanism or the warning system, but were probably the result of incorrect use of the locking handle.
The original issue of this Directive required additional door status indicator lights designed to improve the cabin crew awareness of the status of the door locking and latching system. At the same time, the Directive required the installation of new placards improving the presentation of normal and emergency door operating procedures.
Amendment 1 required the addition of two diodes to the door status electrical circuits.
This Amendment requires an additional relay installation instead of using a new switch.
Fokker F100 (F28 Mk 100) Series Aeroplanes
AD/F100/52 Amdt 2 (Continued)
Amendment 1 of this Airworthiness Directive became effective on 28 November 2002.
The original issue of this Airworthiness Directive became effective on 11 July 2002.
James Coyne
Delegate of the Civil Aviation Safety Authority 4 February 2003
The above AD is notified in the Commonwealth of Australia Gazette on 26 February 2003.
Overview
The Civil Aviation Safety Authority (CASA) introduced the Airworthiness Directive AD/F100/52 Amdt 2 in 2003 to address an issue with the Fokker F100 (F28 Mk 100) Series aeroplanes, specifically concerning the passenger door status lights. This directive was enacted in response to several reported incidents of passenger doors opening during flight, which were attributed to incorrect use of the locking handle rather than design flaws. The policy objective of this directive is to enhance the safety of the aircraft by ensuring that cabin crew are adequately informed about the status of the door locking and latching system, thus preventing future incidents. CASA revoked the previous Amendment 1 of the directive and introduced this amendment to rectify the issue more effectively, requiring the installation of additional relay installations instead of using a new switch.
The Civil Aviation Safety Authority, acting under the Civil Aviation Act 1988, revoked the earlier Airworthiness Directive AD/F100/52 Amdt 1 and issued Amendment 2, effective from 20 March 2003. This action is aimed at ensuring that all applicable Fokker F100 aeroplanes have the required modifications installed before 1 December 2004 to maintain airworthiness standards and ensure the safety of passengers and crew. This legislative instrument reflects CASA’s commitment to continuous improvement in aviation safety through timely and effective amendments to airworthiness directives.
Scope and Application
This Airworthiness Directive (AD) applies specifically to Fokker F100 (F28 Mk 100) Series Aeroplanes, more precisely those of the Model F.28 Mk.0070 and Mk.0100 with serial numbers listed in Fokker Service Bulletin (SB) F100-52-069 Revision 3 dated 18 December 2002. This AD, issued by a delegate of the Civil Aviation Safety Authority (CASA), mandates that additional passenger door status light indicators and new placards be installed in accordance with specific sections of the referenced service bulletin. The directive is applicable within the jurisdiction of the Commonwealth of Australia, as notified in the Commonwealth of Australia Gazette, and it aims to address safety concerns identified by the Netherlands' Civil Aviation Authority. This AD became effective on 20 March 2003, and compliance is required before 1 December 2004. This AD revokes the previous Amendment 1, which had introduced additional diodes to the door status electrical circuits, and replaces it with the requirement to install an additional relay instead of using a new switch.
Key Provisions
The Airworthiness Directive (AD) AD/F100/52 Amdt 2 addresses the safety concerns associated with passenger door status lights in Fokker F100 (F28 Mk 100) Series Aeroplanes. The applicability section (paragraph 1) specifies that this AD pertains to Fokker F.28 Mk.0070 and Mk.0100 aeroplanes with serial numbers listed in Fokker Service Bulletin (SB) F100-52-069 Revision 3 dated 18 December 2002. The requirement section (paragraph 2) mandates that additional passenger door status light indicators and new placards be installed as per the instructions in Section 2, Part 1, 2, or 3 of SB F100-52-069 Revision 3. The installation must be carried out before 1 December 2004 to comply with the directive. This AD also references two related Fokker Services’ Manual Change Notifications, MCNM F100-064 and MCNO F100-031, dated 3 December 2001, which provide further guidance on maintenance and operational documentation.
The AD imposes obligations on the entities responsible for maintaining the Fokker F100 aeroplanes covered by this directive. These obligations include ensuring that the specified modifications are made to the aircraft, including the installation of additional door status light indicators and new placards. The modifications must be performed in accordance with the instructions provided in the relevant sections of the Fokker Service Bulletin and the Manual Change Notifications referenced in the directive. Compliance with these requirements is essential to address the identified safety issue and maintain the airworthiness of the affected aircraft.
Failure to comply with the provisions of this Airworthiness Directive may result in significant consequences for the operators of the Fokker F100 aeroplanes. While the directive does not explicitly state penalties for non-compliance, non-compliance could potentially lead to the aircraft being deemed unairworthy by the Civil Aviation Safety Authority (CASA). This could result in grounding of the aircraft, which would have severe operational and financial implications for the operators. Additionally, non-compliance could potentially lead to regulatory actions by CASA, including fines or other enforcement measures. The potential for civil or criminal liability also exists if non-compliance is found to have contributed to an accident or incident.