ExecuJet MRO Services South Africa has completed its first replacement of an engine accessory gearbox (AGB) on a Bombardier Challenger 604. The work was conducted to fulfill the requirements of a service bulletin issued by GE Aerospace, maker of the twinjet’s CF34-3B1 engines.

The facility in Johannesburg replaced the AGB on a Nigerian-registered Challenger while it was undergoing a 96-month scheduled aircraft maintenance check. Conducted on-wing to reduce downtime, the work started with a borescope procedure to confirm that the AGB needed to be replaced.

ExecuJet MRO Services South Africa is an authorized service center for the CF34-3B1 engine. Dassault Aviation wholly owns the company, which supports Falcon aircraft and various Gulfstream, Bombardier, Embraer, and Hawker models, with maintenance facilities in Africa, Asia, Australasia, Europe, and the Middle East.

"Our ability to do both the airframe and engine MRO work at the same time and at the same facility reinforces our position as the ‘go-to’ maintenance organization for aircraft operators because we can streamline the maintenance process,” said Vince Goncalves, regional v-p for Africa at ExecuJet MRO Services.