Adaptive cycle engines are specially designed to alternate between efficiency and raw power—extending an aircraft’s range ...

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.

CFM International Inc. identified more aircraft engines and forged documents linked to the UK parts distributor behind an alleged scheme to sell aircraft components backed by forged records. An ...

European aviation regulators have determined that an obscure London-based company supplied bogus parts for repairs of jet engines that power many older-generation Airbus A320 and Boeing 737 planes.