Document ID: chunk:federal_register_of_legislation:F2006B09816:body:0:p1
Version: federal_register_of_legislation:F2006B09816
Segment Type: other
Provision Reference: 
Character Range: 4–3194

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
    SCHEDULE OF AIRWORTHINESS DIRECTIVES

    Fokker F28 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/F28/81 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/F28/81
    Amdt 1

    MLG Attachment Bracket 3/2001

               Applicability: Model F28 Mk. 1000 through Mk. 4000 series, serial numbers 11003 through 11091, 11094 through 11171, 11991, and 11192.

                 Requirement:  1. Inspect the affected area of the upper girder of the MLG bracket and wing stringer fitting in accordance with Parts 2A and 2B of the Accomplishment Instructions of Fokker Service Bulletin (SB) F28/57-90 Revision 1, dated August 28, 2000.

2.    If no cracks were found as a result of the inspection required by the original issue of this Directive, re-inspect in accordance with Requirement 1.

3.    If cracks are found, before further flight, accomplish temporary repairs, and thereafter, depending on crack length, as applicable, perform repetitive inspections at the times specified in Table 1 of this Directive; in accordance with Part 3 of the Accomplishment Instructions of Fokker SB F28/57-90 Revision 1.

               Note 1: Replacement of the MLG bracket must be done in accordance with Fokker SB F28/57-92.

               Note 2: RLD AD 1999-045/2 refers.

               Compliance: For Requirement 1 and 2: Within 12 months after 22 March 2001. Thereafter at intervals not to exceed 18 months.

               For Requirement 3: As per Table 1 below:
 COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

                                  TABLE 1

            Crack Length Repair Instruction Repeat Insp. Interval

            Less than 3 mm. Install concentric bushing* 18 months

            Greater than 3mm, less than 7mm.

    Install eccentric bushing* 18 months

            Greater than 7mm, less than 15 mm.

  Remove cracked part and accomplish repairs*

  18 months

            Greater than 15 mm, less than 25 mm.

            Greater than 25 mm, less than 40 mm.

                     As above 250 flight cycles or 1 month

                     As above 50 flight cycles or 1 week

            Greater than 40mm. Replace MLG bracket

            * As an alternative to the above repair action, the MLG bracket may be inspected at intervals not to exceed 250 flight cycles or 1 month, whichever occurs