This is the best summary I could come up with:

Delta Air Lines Inc. has discovered unapproved components in “a small number” of its jet aircraft engines, becoming the latest carrier and fourth major US airline to disclose the use of fake parts.

The suspect components — which Delta declined to identify — were found on an unspecified number of its engines, a company spokesman said Monday.

The problematic pieces, which were certified by AOG, were detected during engine work by an unnamed third party, the spokesman said.

As many as 21 of Delta’s engines could have been affected, according to Bloomberg calculations based on data provided by the airline, which would represent the most among US carriers that have disclosed a number.

“Working with the overhaul provider, we are in the process of replacing those parts and remain in compliance with all FAA guidelines.”

AOG last month was ordered by a London judge to hand over records to help identify additional suspect parts after GE and Safran filed a lawsuit seeking documents relating to “every single sale of products.”

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