Australia’s Civil Aviation Safety Authority has issued airworthiness bulletin 34-020, issue 1, on potential interference of radio altimeter systems, advising operators of aircraft that use airborne low range radio altimeters of potential interference to these altimeters systems from 5th generation telecommunications infrastructure.

EASA has issued airworthiness directive 2021-0190 for Airbus A300s, 300-600s and Belugas, requiring inspection of main landing gear support rib 5, effective Aug. 31, 2021.

EASA has issued proposed airworthiness directive 21-125 for Pilatus PC-12s, -12/45s, -12/47s and -12/47Es, amending time limits and maintenance checks under airworthiness limitations section, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-118 for Airbus A350-1041s and -941s, amending time limits and maintenance checks under safe life airworthiness limitations items part 1, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-119 for Airbus A350-1041s and -941s, amending time limits and maintenance checks under damage tolerant airworthiness limitation items part 2, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-120 for Airbus A350-1041s and -941s, amending time limits and maintenance checks under system equipment maintenance requirements part 4, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-121 for Airbus A350-1041s and -941s, amending time limits and maintenance checks under fuel airworthiness limitations part 5, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-122 for ATR42-200s, -300s and -320s, amending time limits and maintenance checks under certification maintenance requirements and airworthiness limitations, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-123 for ATR42-400s and 500s, amending time limits and maintenance checks under certification maintenance requirements and airworthiness limitations, effective 14 days after airworthiness directive is issued.

EASA has issued proposed airworthiness directive 21-124 for ATR72-101s, -102s, -201s, -202s, -211s, -212s, and -212As, amending time limits and maintenance checks under certification maintenance requirements and airworthiness limitations, effective 14 days after airworthiness directive is issued.

FAA has issued airworthiness directive 2021-17-07 for certain Airbus Canada A220-100s and -300s, requiring inspecting for damage of the left and right motive flow fuel line assemblies, including the flexible-hose and shroud assemblies, and replacing damaged parts, effective Aug. 30, 2021.

FAA has issued airworthiness directive 2021-17-09 for all Pratt & Whitney PW1500Gs and PW1900Gs, requiring removal and replacement of the high-pressure compressor front hub and rotor shaft, effective Sept. 22, 2021.

FAA has issued airworthiness directive 2021-17-08 for certain Boeing 737-800s and -900ERs, requiring de-modification of a certain supplemental type certificate installation by removing external equipment including radome, antenna and associated structure, installing doubler and fasteners, and system deactivation by pulling and collaring associated circuit breakers if installed, plus inspecting the external and feed-through doublers, intercostals, skin and frames in the area around the removed external equipment for cracking, and repair if necessary, effective Aug. 17, 2021.