Global Regulatory Update, Dec. 5-11, 2021

EASA issued airworthiness directive 2020-0249R1 for ATR42s and 72s, requiring operational test and inspection of angle of attack probe and multi-function computers electrical routing, effective Dec. 7, 2021.

EASA issued proposed airworthiness directive 21-177 for CFM LEAP-1A/-1Cs, implementing time limits and maintenance checks under airworthiness limitations section, effective 14 days after airworthiness directive is issued.

EASA issued proposed airworthiness directive 21-176 for Airbus A350-1041s and -941s, requiring inspection and repair of wing upper and lower covers, effective 14 days after airworthiness directive is issued.

FAA issued airworthiness directive 2021-22-25 for all Airbus A330-200s, -200 freighters, -300s, -900s, A340-200s, -300s, -500s and -600s, requiring revising the operator's existing FAA-approved minimum equipment list for the air data-inertial reference system, effective Jan. 5, 2022.

FAA issued airworthiness directive 2021-23-07 for certain Saab 340Bs, requiring replacing a certain circuit breaker with a part having a higher rating, effective Jan. 5, 2022.

FAA issued airworthiness directive 2021-23-02 for certain De Havilland Aircraft of Canada DHC-8-401s and -402s, requiring a detailed visual inspection for chafing and proper clearance of the left-hand and right-hand main landing gear primary zone advanced pneumatic detector sensing lines, the hydraulic tube assemblies, and the surrounding structure, and doing all applicable corrective actions, effective January 5, 2022.

Transport Canada issued airworthiness directive CF-2021-42 for Viking Air DHC-6 series 1s, series 100s, series 110s, series 200s, series 210s, series 300s, series 310s, series 320s and series 400s, requiring a functional check of certain fuel control unit push rod assemblies and other actions, effective Dec. 10, 2021.

Transport Canada issued advisory circular 500-030, issue number 01, on alternative agents for aircraft fire extinguisher systems, effective Oct. 13, 2021.

Transport Canada issued airworthiness directive CF-2021-43 for Airbus Canada A220-100s and -300s, requiring cleaning and greasing all slat tracks, inspecting as applicable and repairing any corrosion or damage found before further flight, plus other actions, effective Dec. 13, 2021.