AD FAA-2015-3634

We are superseding Airworthiness Directive (AD) 2014-20-01 for certain Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes. AD 2014-20-01 required repetitive inspections for any fuel leak in the right-hand landing lights compartment, and related investigative and corrective actions if necessary. AD 2014-20-01 also provides for an optional replacement of the connector of the fuel boost pump canister of the auxiliary power unit (APU), which terminates the repetitive inspections. This new AD requires replacing the connector of the fuel boost pump canister of the APU. This AD was prompted by the determination that a terminating action for the repetitive inspections is necessary. We are issuing this AD to detect and correct fuel leaks in the right-hand landing lights compartment, which, in combination with the heat generated by the taxi lights and landing lights on the ground reaching the auto-ignition temperature of the fuel, could result in ignition of any fuel or fumes present in the right-hand landing lights compartment.