Global Regulatory Update, March 19-26, 2023

EASA has issued airworthiness directive 2023-0051 for Airbus A350-941s, requiring inspection of main landing gear door axis index washer, effective March 24, 2023.

EASA has issued airworthiness directive 2023-0052 for Airbus A330s, requiring leak test on inner fuel tanks, effective March 28, 2023.

EASA has issued airworthiness directive 2023-0053 for Airbus A330-223Fs and -243s, requiring modification of rear fuselage, effective March 28, 2023.

EASA has issued airworthiness directive 2023-0054 for Airbus A330-202s, -203s, -223s, -243s and -841s, requiring modification of rear fuselage, effective March 28, 2023.

EASA has issued airworthiness directive 2023-0056 for Airbus A330s and A340s, requiring replacement of auxiliary power unit scroll housing assembly, effective March 30, 2023.

EASA has issued airworthiness directive 2023-0057 for Airbus A330s and A340s, requiring replacement of auxiliary power unit fuel control unit, effective March 30, 2023.

EASA has issued safety information bulletin 2023-03 for aircraft operators and air navigation service providers, regarding incorrect barometric altimeter settings when operating below the transition level.
 

FAA has issued airworthiness directive 2023-03-15 for all Boeing 747-100s, -100Bs, -100B SUDs, -200Bs, -200Cs, -200Fs, -300s, -400s, -400Ds, -400Fs, 747SRs and 747SPs, requiring repetitively inspecting all trim air diffuser ducts or sidewall riser duct assemblies for damage, effective April 14, 2023.

FAA has issued airworthiness directive 2022-20-03 for certain MHI RJ Aviation RJ 700s, 701s, 702s, 550s, 705s, 900s and 1000s, requiring cleaning and flushing the crew oxygen system, effective April 14, 2023.

FAA has issued airworthiness directive 2023-04-14 for certain Rolls-Royce Deutschland Trent XWB-75s, -79s, -79Bs, -84s and -97s, requiring initial and repetitive inspections of the low-pressure compressor outlet guide vane outer mount ring assembly and, depending on the results of the inspections, possible replacement of the outer mount ring assembly, effective April 14, 2023.

FAA has issued airworthiness directive 2023-04-19 for certain GE90-110B1s and -115Bs, requiring fluorescent penetrant inspections of certain high-pressure turbine rotor stage 7-9 spools and,  depending on the results of the inspection, replacement with a part eligible for installation, effective March 27, 2023.
 

FAA has issued airworthiness directive 2022-22-06 for all Airbus A310s, revising the maintenance or inspection program to incorporate new or more restrictive airworthiness limitations, effective March 27, 2023.

FAA has issued airworthiness directive 2022-19-14 for certain Embraer EMB-545s and -550s, requiring installing, on the right- and left-hand side divan, a protective fairing covering on the divan shroud and the side-ledge panel, effective April 14, 2023.

FAA has issued airworthiness directive 2023-02-11 for certain Airbus A321-251NXa, -252NXs, -253NXs, -271NXs and -272NXs, requiring a one-time detailed inspection of the installation of the Airbus Cabin Flex over-wing emergency exit slide release mechanism for discrepancies and applicable corrective actions, effective April 17, 2023.

FAA has issued airworthiness directive 2023-05-01 for certain De Havilland Aircraft of Canada DHC-8-400s, requiring replacing the flap power unit or replacing the unit’s pressure switch, re-identifying the unit and prohibiting installation of affected parts, effective April 18, 2023.

FAA has issued airworthiness directive 2023-05-02 for certain Airbus A320-family aircraft, revising the maintenance or inspection program to incorporate new or more restrictive airworthiness limitations, effective April 18, 2023.
 

Transport Canada has issued airworthiness directive CF-2023-19 for MHI RJ Aviation RJ 100s and 440s, dealing with missing 14th stage bleed duct missing insulation, effective March 27, 2023.