FAA has issued airworthiness directive 2020-14-02 for Boeing 747-100s, -100Bs, -100B SUDs, -200Bs, -200Cs, -200Fs, -300s, -400s, -400Ds, -400Fs, 747SRs and 747SPs, correcting an earlier airworthiness directive, effective July 28, 2020.
FAA has issued airworthiness directive 2020-13-06 for certain Pratt & Whitney Canada PW150As, requiring replacement of certain high-pressure centrifugal impellers, effective August 6, 2020.