Remove each fuel fire shutoff valve actuator with PN the aeroplane and replace it with a fuel fire shutoff valve actuator




AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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/F100/95

Fuel Fire Shut-off Valve Actuator

10/2009

 

Applicability: Fokker Aircraft B.V. F28 Mark 0070 and Mark 0100 aeroplanes, all serial numbers, if an actuator Part Number (P/N) 9409122 or P/N 53-0013 is installed on one or both fuel fire shut-off valves.
Requirement:
    1. Accomplish either Requirement 1.a. or 1.b. below, as applicable to the aeroplane configuration:

    a. For aeroplanes in pre-SBF100-76-018 dated 31 July 2008 configuration:

    Remove each fuel fire shut-off valve actuator with P/N 9409122 from the aeroplane and replace it with a fuel fire shut-off 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 SBF100-76-020 dated 20 April 2009.

    b. For aeroplanes in post-SBF100-76-018 configuration:

    Remove each fuel fire shut-off valve actuator with P/N 53-0013 from the aeroplane and replace it with a fuel fire shut-off valve actuator P/N 53-0027 in accordance with Part 2 of the Accomplishment Instructions of Fokker Services SBF100-76-020.

    2. Do not install a P/N 53-0013 fuel fire shut-off 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 53-0027 fuel fire shut-off valve actuators on an aeroplane, the requirements of AD/F100/84 (EASA AD 2007-0122) no longer apply to the fuel fire shut-off valve actuators installed on that aeroplane.

Note 2:  EASA AD 2009-0168 dated 3 August 2009 refers.  This AD supersedes EASA AD 2008-0193.
Compliance: For Requirement 1 - Within the next 15 months after the effective date of this AD.

For Requirement 2 - After the effective date of this AD.

 

  This Airworthiness Directive becomes effective on 24 September 2009.
Background: Due to their position on the aeroplane, fuel fire shut-off valve actuators P/N 9409122 are susceptible to freezing, which has an adverse effect on the operation of the valve.  Also, due to various causes, the failure rate of actuator P/N 9409122 is higher than expected.  Failure or freezing of the actuator may prevent the flight crew to close the fuel fire shut-off valve in case of an engine fire.

Aeroplanes serial numbers 11244 through 11441 were delivered from the production line with actuators P/N 9401037 (“chimney type”) installed.  However, on some aeroplanes, these actuators have subsequently been replaced in service with actuators P/N 9409122 (using mounting blocks P/N 7923505) on one or both fuel fire shut-off valves.  As a result, those aeroplanes are also affected by this unsafe condition.

To address and correct this unsafe condition, CASA issued AD/F100/92 (EASA AD 2008-0193), requiring the replacement of all P/N 9409122 fuel fire shut-off valve actuators with new actuators developed by the manufacturer Eaton Aerospace, P/N 53-0013, which have improved reliability and are less susceptible to freezing.

Following the introduction of actuator P/N 53-0013 in service, Eaton Aerospace reported manufacturing and design errors on actuators with P/N 53-0013.  As a result of these errors, the top-cap of the actuator may become loose, possibly leading to actuator failure.  Eaton Aerospace has eliminated these problems by introducing a new actuator P/N 53-0027 and Fokker Services have published SBF100-76-020 to introduce these improved actuators on aeroplanes.

As a consequence of AD/F100/92, both P/N 9409122 and P/N 53-0013 fuel fire shut-off valve actuators are currently installed on aeroplanes affected by this AD.

For the reasons described above, this AD supersedes AD/F100/92 and requires the installation of new P/N 53-0027 actuators.  This AD also prohibits the installation of P/N 53-0013 actuators in accordance with SBF100-76-018 (which has been cancelled), as previously required by AD/F100/92.

 
James Coyne 
Delegate of the Civil Aviation Safety Authority

14 August 2009






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    Remove each fuel fire shutoff valve actuator with PN the aeroplane and replace it with a fuel fire shutoff valve actuator

    AIRWORTHINESS DIRECTIVE

    For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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/F100/95

    Fuel Fire Shut-off Valve Actuator

    10/2009

     

    Applicability: Fokker Aircraft B.V. F28 Mark 0070 and Mark 0100 aeroplanes, all serial numbers, if an actuator Part Number (P/N) 9409122 or P/N 53-0013 is installed on one or both fuel fire shut-off valves.
    Requirement:
      1. Accomplish either Requirement 1.a. or 1.b. below, as applicable to the aeroplane configuration:

      a. For aeroplanes in pre-SBF100-76-018 dated 31 July 2008 configuration:

      Remove each fuel fire shut-off valve actuator with P/N 9409122 from the aeroplane and replace it with a fuel fire shut-off 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 SBF100-76-020 dated 20 April 2009.

      b. For aeroplanes in post-SBF100-76-018 configuration:

      Remove each fuel fire shut-off valve actuator with P/N 53-0013 from the aeroplane and replace it with a fuel fire shut-off valve actuator P/N 53-0027 in accordance with Part 2 of the Accomplishment Instructions of Fokker Services SBF100-76-020.

      2. Do not install a P/N 53-0013 fuel fire shut-off 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 53-0027 fuel fire shut-off valve actuators on an aeroplane, the requirements of AD/F100/84 (EASA AD 2007-0122) no longer apply to the fuel fire shut-off valve actuators installed on that aeroplane.

    Note 2:  EASA AD 2009-0168 dated 3 August 2009 refers.  This AD supersedes EASA AD 2008-0193.
    Compliance: For Requirement 1 - Within the next 15 months after the effective date of this AD.

    For Requirement 2 - After the effective date of this AD.

     

      This Airworthiness Directive becomes effective on 24 September 2009.
    Background: Due to their position on the aeroplane, fuel fire shut-off valve actuators P/N 9409122 are susceptible to freezing, which has an adverse effect on the operation of the valve.  Also, due to various causes, the failure rate of actuator P/N 9409122 is higher than expected.  Failure or freezing of the actuator may prevent the flight crew to close the fuel fire shut-off valve in case of an engine fire.

    Aeroplanes serial numbers 11244 through 11441 were delivered from the production line with actuators P/N 9401037 (“chimney type”) installed.  However, on some aeroplanes, these actuators have subsequently been replaced in service with actuators P/N 9409122 (using mounting blocks P/N 7923505) on one or both fuel fire shut-off valves.  As a result, those aeroplanes are also affected by this unsafe condition.

    To address and correct this unsafe condition, CASA issued AD/F100/92 (EASA AD 2008-0193), requiring the replacement of all P/N 9409122 fuel fire shut-off valve actuators with new actuators developed by the manufacturer Eaton Aerospace, P/N 53-0013, which have improved reliability and are less susceptible to freezing.

    Following the introduction of actuator P/N 53-0013 in service, Eaton Aerospace reported manufacturing and design errors on actuators with P/N 53-0013.  As a result of these errors, the top-cap of the actuator may become loose, possibly leading to actuator failure.  Eaton Aerospace has eliminated these problems by introducing a new actuator P/N 53-0027 and Fokker Services have published SBF100-76-020 to introduce these improved actuators on aeroplanes.

    As a consequence of AD/F100/92, both P/N 9409122 and P/N 53-0013 fuel fire shut-off valve actuators are currently installed on aeroplanes affected by this AD.

    For the reasons described above, this AD supersedes AD/F100/92 and requires the installation of new P/N 53-0027 actuators.  This AD also prohibits the installation of P/N 53-0013 actuators in accordance with SBF100-76-018 (which has been cancelled), as previously required by AD/F100/92.

     
    James Coyne 
    Delegate of the Civil Aviation Safety Authority

    14 August 2009
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