Airworthiness Directive · Amendment 39-21487 · Ice and rain protection
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
This AD applies to MHI RJ Aviation ULC airplanes identified in paragraphs (c)(1) and (2) of this AD, certificated in any category.
(1) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes and Model CL-600-2C11 (Regional Jet Series 550) airplanes having serial numbers (S/Ns) 10082, 10135, 10141, 10155, 10166, 10173, 10178, 10186, 10249, 10296, and 10327.
(2) Model CL-600-2D24 (Regional Jet Series 900) airplanes having S/Ns 15099, 15102, 15144, 15159, 15201, 15212, 15279, 15396, 15409 through 15413 inclusive, 15415, 15419 through 15427 inclusive, 15430, 15449, and 15453.
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), and CL-600-2D24 (Regional Jet Series 900) airplanes. This AD was prompted by a report that some piccolo ducts for the wing anti-ice system have bleed holes that do not conform to requirements. This AD requires, depending on airplane configuration, inspection for the presence of affected wing anti-ice system piccolo ducts and corrective actions, or replacement of affected piccolo ducts with new piccolo ducts. The FAA is issuing this AD to address the unsafe condition on these products.
Within 8,800 flight hours after the effective date of this AD, inspect for the presence of affected piccolo duct assemblies, as applicable, and replace each affected piccolo duct with a new piccolo duct, as applicable, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA-30-025, dated December 17, 2019.
At the applicable time specified in paragraph (h)(1) or (2) of this AD: Report the piccolo duct part and serial numbers before and after the modification required by paragraph (g) of this AD to Bombardier in accordance with the instructions of Bombardier Service Bulletin 670BA-30-025, dated December 17, 2019.
(1) If the inspection was done on or after the effective date of this AD: Submit the report within 30 days after the inspection.
(2) If the inspection was done before the effective date of this AD: Submit the report within 30 days after the effective date of this AD.
