Royal Brunei Airlines’ Engineering Department is a holder of EASA 145 Maintenance Approval and also EASA 147 Technical Training Approval issued by the UK CAA. The airline currently has two hangars that are fully equipped with docking systems to accommodate the B757, B767, A319 and A320 family of aircraft. The services being provided ranges from simple line maintenance checks, AOG rescue to comprehensive aircraft '4C' checks, embodiment of Service Bulletins, modifications, aircraft cabin re-configuration and painting.

In addition to maintaining and providing total technical support to its own fleet of aircraft, Royal Brunei Airlines' Engineering Department also provides total maintenance and technical support services and training to other 3rd party customers. Among its international customers are Air Mauritius, AWAS, Azerbaijan Airlines, Britannia Airways, Cebu Pacific Air, China Yunnan Airlines, Orient Thai Airlines, PB Air, Phuket Airlines, Royal Nepal Airlines, TUI Airlines Nederland, Turkmenistan Airlines, Vietnam Airlines and LOTUS Air.

In 1997, the airline also acquired a new generation B767-300ER/B757-200ER full-flight simulator to keep its pilots in top form. This was installed in a purpose-built facility at the RBA Centre. Certified by the United Kingdom Civil Aviation Authority (UK CAA) to the European JAR STD 1-A standard Level C, all Flight Crew Initial and Recurrent training is now carried out in-house by Royal Brunei’ s own UK CAA-Authorised Training Captains. The airline has also been successful in marketing simulator time to other airlines both in Asia and the European regions.

In 1999, His Majesty Sultan Hj Hassanal Bolkiah tried out the simulator, “flying” around Brunei and London.