AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/EMB- 110/31 Amdt 6 and issues the following AD under subregulation 39.1 (1) of CASR 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.
Embraer EMB-110 (Bandeirante) Series Aeroplanes
AD/EMB-110/31
Amdt 7
Cracking of Horizontal Stabiliser Attachment Fittings
6/2003
Applicability: All models of EMB-110 Bandeirante with components listed in the Requirement Document, with more than 5000 hours time in service, or in excess of two years since manufacture.
Requirement: 1. Replace the horizontal stabiliser attachment fittings in accordance with Embraer SB 110-053-0022 Revision 4; as listed in the Table 1 “Old P/N” and “Replacement P/N” columns of the Service Bulletin.
2. Carry out an inspection of horizontal stabiliser attachment fittings as specified by, and in accordance with, Embraer SB 110-053-0022 Revision 4.
Note: Brazil CTA AD 84-04-01 R6 refers.
Compliance: 1. Unless already accomplished; within 900 hours time in service or 6 months after accomplishment of the last inspection required by the previous issue of this Directive or within 900 hours time in service or six months after 12 December 1991, whichever occurs first.
2. At intervals specified in the Requirement Document. This Amendment becomes effective on 12 June 2003.
Background: This directive addresses cracking in the horizontal stabiliser attachment fittings.
Amendment 4 clarified applicability and part identification, and subjected the fittings affected to combined inspection periods.
Amendment 5 aligned this AD with the latest revision of the related Country of Origin AD.
Amendment 6, effective 18 August 1994, was issued to delete reference to Revision 2 of the Requirement document and clarify the intent of Requirement 2.
Embraer EMB-110 (Bandeirante) Series Aeroplanes
AD/EMB-110/31 Amdt 7 (continued)
This amendment is issued to update the revision status of the requirement document to Revision 4. There is no change to the compliance.
David Villiers
Delegate of the Civil Aviation Safety Authority 23 April 2003
The above AD is notified in the Commonwealth of Australia Gazette on 21 May 2003.
Overview
The Civil Aviation Safety Authority (CASA) issued the Airworthiness Directive (AD) AD/EMB-110/31 Amdt 7 in 2003 to address the issue of cracking in the horizontal stabiliser attachment fittings of Embraer EMB-110 (Bandeirante) Series Aeroplanes. This directive was enacted to ensure the continued safety of these aircraft by requiring the replacement of the faulty fittings and mandating specific inspections to prevent further deterioration. The AD was developed under the authority of the Civil Aviation Safety Regulations 1998, which empower CASA to issue such directives to maintain airworthiness standards. The policy objective behind this directive is to mitigate potential safety risks associated with the identified structural issue, ensuring the integrity of the aircraft's horizontal stabiliser attachment fittings is maintained.
Scope and Application
The Airworthiness Directive (AD) AD/EMB-110/31 Amdt 7 issued by the Civil Aviation Safety Authority (CASA) applies specifically to all models of Embraer EMB-110 Bandeirante aeroplanes that meet certain criteria: they must have components listed in the requirement document, and they must either have accumulated more than 5000 hours of time in service or have been in excess of two years since manufacture. The directive mandates that these aircraft must replace their horizontal stabiliser attachment fittings according to Embraer Service Bulletin SB 110-053-0022 Revision 4 and conduct an inspection of these fittings as specified by the same Service Bulletin. Compliance with this directive must occur within 900 hours of time in service or six months after the last inspection required by the previous issue of the directive, or within 900 hours of time in service or six months after 12 December 1991, whichever comes first. Subsequent inspections must be carried out at intervals specified in the requirement document. This amendment becomes effective on 12 June 2003. The scope of this directive is limited to the Commonwealth of Australia, and it does not specify any exclusions or exemptions within its text, implying that all applicable aircraft must comply with its requirements.
Key Provisions
The Airworthiness Directive (AD) AD/EMB-110/31 Amdt 7 applies to all models of Embraer EMB-110 Bandeirante aeroplanes that have components listed in the Requirement Document and have more than 5000 hours of time in service, or have been in excess of two years since manufacture. The AD mandates specific actions to rectify an unsafe condition related to cracking in the horizontal stabiliser attachment fittings. Firstly, the directive requires the replacement of the horizontal stabiliser attachment fittings in accordance with Embraer Service Bulletin (SB) 110-053-0022 Revision 4, which lists the old part numbers and the replacement part numbers in Table 1. Secondly, it mandates an inspection of these fittings as specified in the same Service Bulletin. The directive references Brazil Civil Aviation Authority AD 84-04-01 R6 for further details.
The obligations imposed by this AD on the parties it governs, primarily aircraft operators and owners, are to ensure that the specified actions are taken within the stipulated timeframes. Operators must replace the horizontal stabiliser attachment fittings and carry out inspections as per the instructions in Embraer SB 110-053-0022 Revision 4. Compliance with these requirements is mandatory unless the actions have already been completed. The AD specifies that the required actions must be undertaken within 900 hours of time in service or six months after the last inspection, whichever is later, and then at intervals as outlined in the Requirement Document. The AD became effective on 12 June 2003.
Failure to comply with the AD can lead to significant consequences. The AD is a legal requirement under subregulation 39.1(1) of the Civil Aviation Safety Regulations 1998 (CASR 1998), and non-compliance may result in the aircraft being deemed unairworthy. This could potentially lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Although the AD itself does not specify penalties, non-compliance with aviation safety directives can result in civil or criminal penalties under the Civil Aviation Act 1988 and other relevant legislation. Such penalties may include fines, imprisonment, or both, depending on the severity and intent of the non-compliance.