"CFM is reviewing the documentation turned over by AOG Technics as part of our effort to determine the full extent of their sale of parts with fraudulent documentation," CFM said.
AOG Technics could not be reached for comment.
CFM56 engines are repaired through third-party networks or at maintenance, repair and overhaul (MRO) facilities operated by CFM itself.
The company said it had found four cases where parts from AOG entered its own facilities, impacting 16 engines.
CFM said its more recent LEAP engine, used on the Boeing 737 MAX and some Airbus A320neo jets, was not affected.
Persons:
Benoit Tessier, France's Safran, AOG Technics, Jose Zamora Yrala, CFM's, AOG, Tim Hepher, Chris Reese, Bill Berkrot
Organizations:
GE Aerospace, International Paris Air, Le, REUTERS, Rights, Jet, CFM, AOG, CFM Materials, Boeing, Airbus, Thomson
Locations:
Le Bourget, Paris, France, AOG