Applicable to aircraft with serial numbeApplicable to aircraft with serial numbers 7003 through 7109.

Applicable to aircraft with serial numbers 7003 through 7109.

6. Determine whether the fuel vent system has been modified in accordance with the requirements of Bombardier Service Bulletin 601R-28-024, Revision A, dated 11 November 1998). Aircraft, which have not incorporated the fuel vent system modification, must operate with less than 200 pounds of fuel in the center fuel tank. Amend the limitation section of the Aircraft Flight Manual (AFM) to reflect this limit.

This amendment may be accomplished by inserting a copy of this Directive into the AFM limitation section.

Note: Transport Canada CF-2001-47 refers.

Compliance: For Requirement 1 - Within one day after the effective date of this Directive. For Requirement 2 - Within four days after the effective date of this Directive. For Requirement 3 - Within 45 days after the effective date of this Directive For Requirement 4 - Concurrent with Requirement 3.

For Requirement 5 - As of the effective date of this Directive until Requirement 4 is accomplished.

For Requirement 6 - Within one day after the effective date of this Directive, until Requirement 4 is accomplished.

This Airworthiness Directive becomes effective on 19 December 2001.

Background: Transport Canada has advised that during bench testing of the center tank fuel transfer shutoff valve, it was found that, if the valve fails, it could overheat to a temperature that exceeds the fuel hot surface ignition point.

Signature of Eugene Paul Holzapfel Delegate of the Civil Aviation Safety Authority

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 17 December 2001

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The above AD is notified in the Commonwealth of Australia Gazette on 19 December 2001.