FAA has issued airworthiness directive 2022-23-12 for all Boeing 747-100s, -100Bs, -100B SUDs, -200Bs, -200Cs, -200Fs, -300s, -400s, -400Ds, -400Fs, SRs and SPs, requiring a one-time low frequency eddy current inspection of certain center tank upper skin panels on the right and left side for any structural damage due to heat exposure, and repair if necessary, effective Jan. 4, 2023.
FAA has issued airworthiness directive 2022-23-07 for all BAE Systems BAe 146s, requiring modifying the autopilot engagement circuit, effective Jan. 4, 2023.
FAA has issued airworthiness directive 2022-23-11 for certain Boeing 777s, requiring installing new software in the fuel quantity processor unit or replacing the unit with one that includes new software; doing a software version check and an operational check on the unit; and prohibiting installation of certain units on certain airplanes, effective Jan. 4, 2023.
FAA has issued airworthiness directive 2022-23-10 for all Boeing 777Fs, requiring deactivating the potable water system and installing a shroud to the water supply line in the forward cargo compartment; performing a leak test of the potable water system; and, for certain airplanes, replacing tubes and hoses from the water supply line and installing a shroud to the water return line, effective Jan. 4, 2023.