UK Serious Fraud Office Secures Conviction In AOG Technics Case

The UK’s Serious Fraud Office has secured the conviction of Jose Alejandro Zamora Yrala, director of AOG Technics, the London-based company that sold unapproved CFM 56 engine parts from 2019-23.

With Portuguese authorities, the Serious Fraud Office investigated a tangled web of illicit parts sales by the company, the legal body said. Thousands of second-hand parts were sold with forged documentation. It indicated false origin and status, creating uncertainty about the airworthiness of the part.

The case emerged in June 2023 and shook the industry, as AOG Technics’ customers included carriers, engine parts suppliers and maintenance, repair and overhaul service providers. The UK Civil Aviation Authority and its counterparts in the EU and the U.S. issued safety alerts, effectively grounding those Airbus A320s and Boeing 737s with installed AOG Technics’ components.

For the falsification, Zamora Yrala pled guilty at Southwark Crown Court ahead of the trial. He will appear at the same court on Feb. 23, 2026, for sentencing, the Serious Fraud Office said.