Airworthiness Directive · Amendment 39-13170 · Bombardier Model CL-600-2B19 Series Airplanes
Bombardier Model CL-600-2B19 Series Airplanes
Superseded. A later AD replaced this one: AD 2008-23-11. Comply with the one in force.
Model CL-600-2B19 series airplanes, certificated in any category, having serial numbers 7003 and subsequent, equipped with main landing gear (MLG) main fittings having part numbers (P/N) 601R85001-3 and 601R85001-4 (Messier Dowty, Inc. P/Ns 17064-101, 17064-102, 17064-103, and 17064-104).
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B19 series airplanes, that currently requires repetitive eddy current inspections for cracking of the main landing gear (MLG) main fittings, and replacement with new or serviceable MLG main fittings if necessary. That AD also requires servicing the MLG shock struts; inspecting the MLG shock struts for nitrogen pressure, visible chrome dimension, and oil leakage; and performing corrective actions, if necessary. This amendment clarifies the applicability, adds certain repetitive inspections, reduces an initial inspection threshold, and removes a provision to extend the repetitive interval for the eddy current inspection. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to prevent failure of the MLG main fittings, which could result in collapse of the MLG upon landing.
