1AD/F100/12 - Main Wheel Assembly

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Fokker F100 (F28 Mk 100) Series Aeroplanes

AD/F100/12 Main Wheel Assembly 4/99

Applicability: F.28 Mk.0100 aircraft, all serial numbers equipped with ABS Corporation Main Wheel Assembly P/N 5008142-4, Serial numbers APR91-0570 through FEB93-0965.

Requirement: 1. Determine the Part number and Serial number of the Demountable Flange (inboard) Wheel Sub Assembly and the Demountable Flange (outboard) Wheel Sub Assembly.

For the purposes of this AD, no further action against the Demountable Flange (inboard) Wheel sub assembly is required unless the sub assembly has a Part Number 5008142-4 and a serial number within the following ranges:

APR91-0570 through OCT92-0858; or

S-APR91-0097 through S-MAY92-0126.

For the purposes of this AD, no further action against the Demountable Flange (outboard) Wheel sub assembly is required unless the sub assembly has a Part Number 5008140-1 and a serial number within the following ranges:

APR91-0570 through FEB93-0965; or

S-MAR91-0002 through S-FEB93-0100.

Note 1: Spares of both sub assemblies are affected by the requirements of this AD.

2. For the inboard Wheel Sub Assemblies, inspect in accordance with Section II - Accomplishment Instructions, Paragraph C of ABS Corporation (ABSC) Service Bulletin SB Fo100-32-46 dated Dec 24, 1992.

For the outboard Wheel Sub Assemblies , inspect in accordance with Section II - Accomplishment Instructions, Paragraph B of ABSC SB Fo100-32-48 dated Mar 10, 1993.

If damage or cracks are discovered during the inspection on either the inboard or outboard Wheel sub assemblies, then replace the damaged assembly before further flight. Inboard/outboard Wheel sub assemblies affected by this AD may be used as suitable replacements, provided Requirement 3 of this AD has been completed prior to fitment.

3. Repair the inboard Wheel Sub Assembly in accordance with Section II - Accomplishment Instructions, Paragraph D of ABSC SB Fo100-32-46 dated Dec 24, 1992.

Repair the outboard Wheel Sub Assembly in accordance with Section II - Accomplishment Instructions, Paragraph C of ABSC Fo100-32-48 dated Mar 10, 1993.

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Note 2: The repair of the Outboard Wheel sub assembly in accordance with the above constitutes terminating action for this AD. However, the applicable Component Maintenance Manual contains continuing inspection requirements.