Document ID: chunk:federal_register_of_legislation:F2009L02661:body:0:p1
Version: federal_register_of_legislation:F2009L02661
Segment Type: other
Provision Reference: 
Character Range: 0–3134

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/F100/91 and issues the following AD under subregulation 39.001(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.

Fokker F100 (F28 Mk 100) Series Aeroplanes
AD/F100/91 Amdt 1  Fuel System - Crossfeed Valve Actuator  8/2009

Applicability:  Fokker Aircraft B.V. F28 Mark 0070 and Mark 0100 aircraft, all serial numbers, if an actuator Part Number (P/N) 9409122 or P/N 53-0013 is installed on one or both fuel crossfeed valves.
Requirement:       1. For aeroplanes in pre-SBF100-28-046 configuration - Accomplish either Requirement 1a or 1b below:

                     a. Remove each fuel crossfeed valve actuator with P/N 9409122 from the aeroplane and replace it with a fuel crossfeed valve actuator P/N 53-0013 and accomplish the associated modifications in accordance with the Accomplishment Instructions of Fokker Services SBF100-28-046 dated
                     27 March 2008.

                     b. Remove each fuel crossfeed valve actuator with P/N 9409122 from the aeroplane and replace it with a fuel crossfeed valve actuator P/N 53-0027 and accomplish the associated modifications in accordance with Part 1A or 1B, as applicable, of the Accomplishment Instructions of Fokker Services SBF100-28-061 dated 20 April 2009.

                   2. For aeroplanes in post-SBF100-28-046 configuration, which includes aeroplanes that have complied with Requirement 1a of this AD:

                   Remove each fuel crossfeed valve actuator with P/N 53-0013 from the aeroplane and replace it with a fuel crossfeed valve actuator P/N 53-0027 in accordance with Part 2 of the Accomplishment Instructions of Fokker Services
                   SBF100-28-061.

                   3. Do not install a P/N 53-0013 fuel crossfeed valve actuator on any aeroplane.

                The use of later approved revisions of these documents is acceptable for compliance with the requirements of this AD.

                Note 1:  After installation of P/N 53-0013 or P/N 53-0027 fuel crossfeed valve actuators on an aeroplane, the requirements of CASA AD/F100/84 no longer apply to the fuel crossfeed valve actuators installed on that aeroplane.

             Note 2:  EASA AD 2009-0116 dated 29 May 2009 refers.
Compliance:  For Requirement 1 - Remains unchanged as detailed in the original issue of this AD as within 12 months from 28 August 2008 (The effective date of the original issue of this AD), unless previously accomplished.

             For Requirement 2 - Within the next 18 months after the