Airworthiness Directive · Amendment 39-16848 · Landing gear
Bombardier, Inc. Model CL-215-1A10, CL-215-6B11 (CL-215T Variant), and CL-215-6B11 (CL-415 Variant) Airplanes
This AD applies to Bombardier, Inc., airplanes, certificated in any category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of this AD.
(1) Model CL-215-1A10 airplanes, serial numbers 1051 through 1125 inclusive;
(2) Model CL-215-6B11 (CL-215T Variant) airplanes, serial numbers 1056 through 1125 inclusive; and
(3) Model CL-215-6B11 (CL-415 Variant) airplanes, serial numbers 2001 through 2990 inclusive.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-215-1A10, CL-215-6B11 (CL-215T Variant), and CL-215-6B11 (CL-415 Variant) airplanes. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 50 flight hours after the effective date of this AD: Perform an in situ eddy current inspection for cracks on the forward lug of the MLG upper member, part numbers 160-714-3 (left hand) and 160-714-4 (right hand), in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes).
(1) If any crack is found: Before further flight, replace the forward lug of the MLG upper member with a new forward lug, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). Thereafter, repeat the in situ eddy current inspection at intervals not to exceed 165 land landings.
(2) If no crack is found: Repeat the in situ eddy current inspection at intervals not to exceed 165 land landings, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes).
Within two months after the effective date of this AD: Perform a one-time fluorescent penetrant inspection for cracks on the forward lug of the MLG upper member, part numbers 160-714-3 (left hand) and 160-714-4 (right hand), in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A547, dated July 8, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4450, dated July 8, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). If any crack is found, before further flight, replace the forward lug of the MLG upper member with a new forward lug, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A547, dated July 8, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4450, dated July 8, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes).
Note 1: This AD differs from the MCAI and/or service information as follows: If any cracking is found during any in situ eddy current inspection specified in paragraph (g) of this AD, and the forward lug of the MLG upper member is replaced, this AD requires repetitive in situ eddy current inspections, thereafter, at intervals not to exceed 165 land landings. Canadian Airworthiness Directive CF-2011-35, dated August 29, 2011, does not include this requirement.
