Airworthiness directives › 2020-03-21
AD 2020-03-21 Airworthiness Directives; Bombardier, Inc, Airplanes
Models named: BD-700-1A10, BD-700-1A11. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes, certificated in any category, serial numbers 9001 through 9879 inclusive and 9998 and serial numbers 60001 and subsequent.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
For the purposes of this AD, an affected MLG trailing arm assembly is a MLG trailing arm assembly with part number 21410-107 and a serial number listed in Appendix 4, Table 1 of the applicable Bombardier service information specified in figure 1 to paragraphs (g) through (k) and (m) of this AD. ER26FE20.008
Unsafe condition
This AD was prompted by reports that main landing gear (MLG) trailing arm assemblies were found with compromised paint finish and corrosion on the axle bore inner diameters due to improper removal of contaminants during manufacturing. The FAA is issuing this AD to address possible corrosion on the inner diameter of the MLG trailing arm assembly axle bore, which, if not detected and corrected, could lead to MLG collapse.
Affected ADs
None.
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1