Airworthiness Directive · Amendment 39-17974 · Fuel
Bombardier, Inc. Airplanes
Superseded. A later AD replaced this one: AD 2016-10-10. Comply with the one in force.
This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes, certificated in any category, serial numbers 5906, 5910, 5912, 5917, 5919 through 5932 inclusive, 5934, 5935, 5939, 5940, 5942, and 5948.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) airplanes. This AD requires repetitive inspections for any fuel leak in the right-hand landing lights compartment, and related investigative and corrective actions if necessary. This AD 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 AD was prompted by a report of fuel leaks in the connector cavity of the APU fuel boost pump canister and at the electrical conduit connection of the APU fuel boost pump in the right- hand landing lights compartment. 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.
Within 25 flight hours after the effective date of this AD: Do a general visual inspection for any fuel leak in the right-hand landing lights compartment, and do all applicable related investigative and corrective actions, in accordance with Part A of the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, Revision 02, dated July 9, 2014, except as required by paragraph (h) of this AD. Do all applicable related investigative and corrective actions before further flight. Repeat the inspection thereafter at intervals not to exceed 8 flight hours until the replacement specified in paragraph (i) of this AD has been accomplished.
If any fuel leak is found during the related investigative actions required by paragraph (g) of this AD: Before further flight, do the terminating action specified in paragraph (i) of this AD, or repair using a method approved by the Manager, New York Aircraft Certification Office (ACO), ANE-170, Engine and Propeller Directorate, FAA; or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s TCCA Design Approval Organization (DAO).
Replacing the connector of the fuel boost pump canister of the APU and doing all applicable related investigative actions, in accordance with Part B of the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, Revision 02, dated July 9, 2014, terminates the actions required by paragraph (g) of this AD provided that the following actions are done, as applicable.
(1) If any damage (cuts) is found on the wires, before further flight, replace the wire with a new wire identified in kit 605K28-008A, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, Revision 02, dated July 9, 2014.
(2) If any damage is found on the O-rings, before further flight, replace the O-ring with a new O-ring, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, Revision 02, dated July 9, 2014.
(3) If any fuel leak is found, before further flight, repair using a method approved by the Manager, New York ACO, ANE-170, Engine and Propeller Directorate, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO.
For airplanes having new connectors installed in accordance with Part B of the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, dated April 21, 2014: Within 6 months or 150 flight hours after the effective date of this AD, whichever occurs first, do a detailed inspection for damage (cuts) of the connector wiring, in accordance with Part B of the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, Revision 02, dated July 9, 2014. If any damage (cuts) is found on the wires, before further flight, replace the wire with a new wire identified in kit 605K28-008A, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A605-28-008, Revision 02, dated July 9, 2014.
