Airworthiness Directive · Amendment 39-22604 · Flight controls
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Superseded. A later AD replaced this one: AD 2026-05-05. Comply with the one in force.
This AD applies to all MHI RJ Aviation ULC (Type Certificate previously held by Bombardier, Inc.) airplanes identified in paragraphs (c)(1) through (6) of this AD, certificated in any category.
(1) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes.
(2) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes.
(3) Model CL-600-2C11 (Regional Jet Series 550) airplanes.
(4) Model CL-600-2D15 (Regional Jet Series 705) airplanes.
(5) Model CL-600-2D24 (Regional Jet Series 900) airplanes.
(6) Model CL-600-2E25 (Regional Jet Series 1000) airplanes.
The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440), 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 reports of power control unit (PCU) rod end fractures due to pitting corrosion, and a determination that new or more restrictive airworthiness limitations are necessary. This AD requires, for certain airplanes, revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD also requires accomplishing certain aircraft maintenance manual (AMM) tasks and corrective actions following short-term or long-term storage. The FAA is issuing this AD to address the unsafe condition on these products.
For Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes: Within 60 days after the effective date of this AD, when returning an airplane from long-term storage (storage lasting more than 28 days), do the actions specified in paragraphs (g)(1) through (4) of this AD. Do all applicable corrective actions before further flight.
(1) Accomplish an operational test and applicable corrective actions, in accordance with Task 27-21-00-710-805, Operational Test of the Rudder Control System, Subject 27-21-00, Rudder Control System, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
(2) Accomplish an operational test and applicable corrective actions, in accordance with Task 27-31-00-710-803, Operational Test of the Elevator Control System, Subject 27-31-00, Elevator Control System, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
(3) Accomplish a detailed inspection and applicable corrective actions, in accordance with Task 27-23-01-220-801, Detailed Inspection of the Rudder PCU Rod End Spherical Ball, Subject 27-23-01, Power Control Unit (PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
(4) Accomplish a detailed inspection and applicable corrective actions in accordance with Task 27-33-01-220-801, Detailed Inspection of the Elevator PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ200 Aircraft Maintenance Manual, CSP A-001, Revision 66, dated October 10, 2022.
For 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: Accomplish the actions required by paragraphs (h)(1) through (3) of this AD, as applicable.
(1) 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 MHI RJ Temporary Revisions ALI-0757 and ALI-0759, both dated September 24, 2021. The initial compliance time for doing the tasks is within 400 flight hours or 6 months, whichever occurs first after the effective date of this AD; or within 60 days after the effective date of this AD; whichever occurs latest.
(2) Within 60 days after the effective date of this AD, when returning an airplane from short-term storage (storage lasting 28 days or less), do the actions specified in paragraphs (h)(2)(i) and (ii) of this AD. Do all applicable corrective actions before further flight.
(i) Accomplish an operational test and applicable corrective actions, in accordance with Task 27-23-01-710-801, Operational Test of the Rudder PCU, Subject 27-23-01, Power Control Unit (PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(ii) Accomplish an operational test and applicable corrective actions in accordance with Task 27-33-01-710-802, Operational Test of the Elevator Power-Control Units (PCUs), Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(3) Within 60 days after the effective date of this AD, when returning an airplane from long-term storage (storage lasting more than 28 days), do the actions specified in paragraphs (h)(3)(i) through (iv) of this AD. Do all applicable corrective actions before further flight.
(i) Accomplish an operational test and applicable corrective actions, in accordance with Task 27-23-01-710-801, Operational Test of the Rudder PCU, Subject 27-23-01, Power Control Unit (PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(ii) Accomplish an operational test and applicable corrective actions in accordance with Task 27-33-01-710-802, Operational Test of the Elevator Power-Control Units (PCUs), Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(iii) Accomplish a detailed inspection and applicable corrective actions in accordance with Task 27-23-01-220-802, Detailed Inspection of the Rudder PCU Rod End Spherical Ball, Subject 27-23-01, Power Control Unit (PCU), Rudder, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(iv) Accomplish a detailed inspection and applicable corrective actions, in accordance with Task 27-33-01-220-801, Detailed Inspection of the Elevator PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
For Model CL-600-2E25 (Regional Jet Series 1000) airplanes: Accomplish the actions specified in paragraphs (i)(1) through (3) of this AD, as applicable.
(1) 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 MHI RJ Temporary Revision ALI-0757, dated September 24, 2021. The initial compliance time for doing the tasks is within 400 flight hours or 6 months, whichever occurs first after the effective date of this AD; or within 60 days after the effective date of this AD; whichever occurs latest.
(2) Within 60 days after the effective date of this AD, when returning an airplane from short-term storage (storage lasting 28 days or less): Accomplish an operational test and applicable corrective actions in accordance with Task 27-33-01-710-802, Operational Test of the Elevator Power-Control Units (PCUs), Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022. Do all applicable corrective actions before further flight.
(3) Within 60 days after the effective date of this AD, when returning an airplane from long-term storage (storage lasting more than 28 days), do the actions specified in paragraphs (i)(3)(i) and (ii) of this AD. Do all applicable corrective actions before further flight.
(i) Accomplish an operational test and applicable corrective actions, in accordance with Task 27-33-01-710-802, Operational Test of the Elevator Power−Control Units (PCUs), Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
(ii) Accomplish a detailed inspection and applicable corrective actions, in accordance with Task 27-33-01-220-801, Detailed Inspection of the Elevator PCU Rod End Spherical Ball, Subject 27-33-01, Power Control Unit (PCU), Elevator, Chapter 27, Flight Controls, of MHI RJ CRJ700/900/1000 Aircraft Maintenance Manual, Part 2, CSP B-001, Revision 71, dated December 16, 2022.
After the existing maintenance or inspection program has been revised as required by paragraphs (h)(1) and (i)(1) of this AD, no alternative actions (e.g., inspections), or intervals may be used unless the actions, and intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (k)(1) of this AD.
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
