Airworthiness Directive · Amendment 39-22729 · MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
This AD applies to MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702); CL-600-2C11 (Regional Jet Series 550); CL-600-2D15 (Regional Jet Series 705); and CL-600-2D24 (Regional Jet Series 900) airplanes, certificated in any category, as identified in Transport Canada AD CF-2022-54R1, dated October 4, 2022 (Transport Canada AD CF-2022-54R1).
The FAA is adopting a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700, 701 & 702); CL-600-2C11 (Regional Jet Series 550); CL-600-2D15 (Regional Jet Series 705); and CL-600-2D24 (Regional Jet Series 900) airplanes. This AD was prompted by a determination that a potential crack of the tombstone fitting lug cannot be detected as the bushings remain in place during accomplishment of the special detailed inspection (SDI) required by a certain airworthiness limitation (ALI) task. This AD requires inspecting the tombstone fitting lug with a new SDI sub-surface ultrasound procedure when accomplishing the ALI task, as specified in a Transport Canada AD, which is incorporated by reference. This AD also requires corrective actions if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
Except as required by paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada CF-2022-54R1.
(1) Where Transport Canada AD CF-2022-54R1 refers to the effective date of AD CF-2022-54 (September 27, 2022), this AD requires using the effective date of this AD.
(2) Where paragraph A. of Transport Canada AD CF-2022-54R1 specifies inspecting “For aeroplanes that, as of the effective date of AD CF-2022-54 (27 September 2022), have not been inspected as required by MRM CSP B-053 Part 2 ALI Task 53-61-121,” this AD requires replacing that text with “For all airplanes.”
(3) This AD does not adopt paragraph B. of Transport Canada AD CF-2022-54R1.
(4) Where paragraph A. of Transport Canada AD CF-2022-54R1 specifies inspecting “within the intervals in MRM CSP B-053 Part 2 for ALI Task 53-61-121,” for this AD, the initial compliance time for the task is within the “threshold” specified in the service information identified in paragraph A. of Transport Canada AD CF-2022-54R1 or within 90 days after the effective date of this AD, whichever occurs later.
If any cracking is found during the actions required by paragraph (g) of this AD, repair the cracking before further flight using a method approved by the Manager, International Validation Branch, FAA; or Transport Canada; or MHI RJ Aviation ULC's Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DOA-authorized signature.
Although the service information referenced in Transport Canada AD CF-2022-54R1 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the International Validation Branch, mail it to the address identified in paragraph (l) of this AD. Information may be emailed to: 9-AVS-NYACO-COS@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or Transport Canada; or MHI RJ Aviation ULC's Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature.
For more information about this AD, contact Yaser Osman, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; email 9-avs-nyaco-cos@faa.gov.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
