Airworthiness directives › 2021-01-01
AD 2021-01-01 Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Applicability*9
This AD applies to MHI RJ Aviation ULC (type certificate previously held by Bombardier, Inc.) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, serial numbers 7003 through 8999 inclusive.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 6 months from the effective date of this AD: Verify the airplane or technical records to determine if an NLG or MLG component listed in Table 1 or Table 2 of Bombardier Service Bulletin 601R-32-112, dated November 11, 2019, is installed on the airplane. If this verification determines that an affected component listed in Table 1 or Table 2 of Bombardier Service Bulletin 601R-32-112, dated November 11, 2019, is installed on the airplane, perform the actions specified in paragraph (h) or (i) of this AD, as applicable.
Unsafe condition
This AD was prompted by evidence that a revised structural life limit of some components of the nose landing gear (NLG) and/or main landing gear (MLG) was not implemented during repair. The FAA is issuing this AD to address structural life limits that are lower than the life limits published in the Maintenance Requirements Manual (MRM), Part 2. This condition, if not corrected, could lead to the collapse of the affected NLG and/or MLG, possibly resulting in airplane damage and injury to the occupants.
Affected ADs
None.
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