Airworthiness Directive · Amendment 39-16643 · And 31: ice and rain protection, and instruments, respectively
Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes
This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, serial numbers 7003 through 8101 inclusive.
Note 1: This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (h)(1) of this AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane.
We are adopting a new airworthiness directive (AD) for the products listed above. 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.
Do the following actions.
(1) Within 30 days after the effective date of this AD, revise the Limitations and Normal Procedures sections of the Canadair Regional Jet Airplane Flight Manual (AFM), CSP A-012, to include the information in Canadair (Bombardier) Temporary Revision (TR) RJ/164-2, dated May 14, 2009. This TR introduces procedures for operation in icing conditions. Operate the airplane according to the limitations and procedures in this TR.
Note 2: This may be done by inserting a copy of Canadair (Bombardier) TR RJ/164-2, dated May 14, 2009, into the AFM. When this TR has been included in general revisions of the AFM, the general revisions may be inserted in the AFM, provided the relevant information in the general revision is identical to that in Canadair (Bombardier) TR RJ/164-2, dated May 14, 2009.
(2) Within 30 days after the effective date of this AD, revise the maintenance program by incorporating the inspection requirements for Tasks C30-10-141-03, C30-10-141-05, and C30-10-141-07, contained in Bombardier TR 2A-46, dated July 24, 2009, into Appendix A, “Certification Maintenance Requirements,” of Part 2 of the Bombardier CL-600-2B19 Maintenance Requirements Manual (MRM). The initial compliance times for the tasks identified in Bombardier TR 2A-46, dated July 24, 2009, are specified in Table 1 of this AD.
Note 3: The actions required by paragraph (g)(2) of this AD may be done by inserting a copy of Bombardier TR 2A-46, dated July 24, 2009, into the Bombardier CL-600-2B19 MRM. When this TR has been included in general revisions of the MRM, the general revisions may be inserted into the MRM, provided the relevant information in the general revision is identical to that in Bombardier TR 2A-46, dated July 24, 2009.
| Task | Applicability | Initial compliance time (whichever occurs later) | |
| C30-10-141-03 | Airplanes on which Modification Summary TC601R17494 or actions specified in Bombardier Service Bulletin 601R-30-031 have been done | Before the accumulation of 6,000 total flight hours; or if accomplished previously, within 6,000 flight hours since this task was last accomplished | Within 5 flight hours or 30 days after the effective date of this AD, whichever occurs later. |
| C30-10-141-05 | Airplanes with outboard sufficient heat switches installed in accordance with Modification Summary TC601R17494 or actions specified in Bombardier Service Bulletin 601R-30-031 have been done | Before the accumulation of 6,000 total flight hours; or if accomplished previously, within 6,000 flight hours since this task was last accomplished | Within 5 flight hours or 30 days after the effective date of this AD, whichever occurs later. |
| C30-10-141-07 | Airplanes with outboard sufficient heat switches installed in accordance with Modification Summary TC601R17494 or actions specified in Bombardier Service Bulletin 601R-30-031 have been done | Before the accumulation of 6,000 total flight hours; or if accomplished previously, within 6,000 flight hours since this task was last accomplished | Within 5 flight hours or 30 days after the effective date of this AD, whichever occurs later. |
(3) For airplanes having S/Ns 7003 through 8095 inclusive: Before or concurrently with accomplishing the actions required by paragraph (g)(5) of this AD: Replace any data concentrator units (DCUs) having part number (P/N) 622-9820-007, 622-9820-008, or 622-9820-009 with modified DCUs having P/N 622-9820-010, and, if applicable, modify the configuration strapping units (CSUs), in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R-31-034, Revision A, dated April 10, 2008.
(4) Before or concurrently with accomplishing the actions required by paragraph (g)(5) of this AD: Install the outboard low-heat detection switches, and wing A/ICE box assembly and its associated wires, in accordance with the Accomplishment Instructions of Parts A, C, D, and E of Bombardier Service Bulletin 601R-30-031, Revision D, dated February 3, 2010.
Note 4: A small number of cases have been reported in which piccolo ducts were found to have been installed in the opposite wing, resulting in the incorrect orientation of the bleed holes. During reinstallation of the piccolo ducts and leading edge assemblies after installing the low-heat detection switches, particular attention should be paid to the correct alignment of the piccolo ducts. Guidance can be found in Task 30-11-41-820-801 of the Canadair CRJ Series Regional Jet Aircraft Maintenance Manual.
(5) Within 11 months after the effective date of this AD: Activate the outboard low-heat detection switches in accordance with Part F of the Accomplishment Instructions of Bombardier Service Bulletin 601R-30-031, Revision D, dated February 3, 2010.
(6) Actions accomplished in accordance with the service information specified in Table 2 of this AD, before the effective date of this AD, are acceptable for compliance with the corresponding actions required by paragraphs (g)(4) and (g)(5) of this AD.
| Bombardier Service Bulletin— | Revision— | Dated— |
|---|---|---|
| 601R-30-031 | Original | May 15, 2009. |
| 601R-30-031 | A | September 8, 2009. |
| 601R-30-031 | B | October 28, 2009. |
| 601R-30-031 | C | December 23, 2009. |
(7) Replacing DCUs P/N 622-9820-007, 622-9820-008, or 622-9820-009 with modified DCUs having P/N 622-9820-010, and modifying CSUs, are also acceptable for compliance with the requirements of paragraph (g)(3) of this AD if done before the effective date of this AD, in accordance with Accomplishment Instructions of Bombardier Service Bulletin 601R-30-034, dated November 19, 2007.
Note 5: This AD differs from the MCAI and/or service information as follows: The MCAI specifies to include the revised Task C30-10-141-01. This AD does not include Task 30-10-141-01. This difference has been coordinated with TCCA.
