Airworthiness Directive · Amendment 39-22439 · Fire protection
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
This AD applies to all 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), CL-600-2D24 (Regional Jet Series 900) and CL-600-2E25 (Regional Jet Series 1000) airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all 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), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is issuing this AD to address the unsafe condition on these products.
Within 60 days after the effective date of this AD, revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in Task 26-20-00-101, “Visual Check of the Engine Fire Extinguishing bottle pressure gauge” and Task 26-20-00-102, “Visual Check of the APU Fire Extinguishing bottle pressure gauge,” of Section 1, “Certification Maintenance Requirements,” Subject 1-26, “Fire Protection,” of the MHI RJ Model CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, and CL-600-2E25 Series 550/700/705/900/1000 Airworthiness Limitations, Maintenance Requirements Manual (MRM)—Part 2, Volume 1, CSP B-053, Revision 26, dated March 25, 2022 (Task 26-20-00-101 and Task 26-20-00-102 of the MRM—Part 2, Revision 26). The initial compliance time for doing the tasks is at the phase-in time specified in Task 26-20-00-101 and Task 26-20-00-102 of the MRM—Part 2, Revision 26, or within 60 days after the effective date of this AD, whichever occurs later.
After the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals, are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (i)(1) of this AD.
