Document ID: chunk:federal_register_of_legislation:F2006B09817:body:0:p2
Version: federal_register_of_legislation:F2006B09817
Segment Type: other
Provision Reference: 
Character Range: 2847–3901

this Directive
equal to or exceeding 40,000                                                       one year
less than 40,000                                                                   two years

           This Airworthiness Directive becomes effective on 8 December 1999.

           Background: The Fokker B.V. Fuel System Safety Programme investigation of the boost pump wiring on Fokker F28 aeroplanes revealed that the boost pump wiring insulation layers can be damaged during installation/removal and/or chafing of the wiring. Additionally, signs of arcing between the wiring and the conduit was detected in two boost pump wiring metal conduits located in the collector tank.

           This Directive requires a one time review of aircraft maintenance documentation, repetitive checks for signs of fuel leakage from the boost pump wiring conduits inside the Main Landing Gear strut bays and corrective action as necessary. The Directive also requires eventual replacement of the existing three single wires in the boost pump metal conduit.