Maintenance and Modifications
Duncan Completes 144-Month Inspections on Two G650s
Inspections involve full nose-to-tail evaluation
Duncan Aviation recently completed 144-month inspections on two Gulfstream G650 aircraft. The 144-month inspection is one of the most in-depth maintenance events and involves removing all exterior access panels, the complete interior, and the landing gear—essentially giving technicians full access to inspect and evaluate the aircraft from nose to tail.
Duncan Aviation recently completed 144-month inspections on two Gulfstream G650 aircraft. The 144-month inspection is one of the most in-depth maintenance events and involves removing all exterior access panels, the complete interior, and the landing gear—essentially giving technicians full access to inspect and evaluate the aircraft from nose to tail.

Duncan Aviation completed 144-month inspections simultaneously on two Gulfstream G650s at its Lincoln, Nebraska, and Provo, Utah facilities. This inspection is among the most comprehensive maintenance events in an aircraft’s life cycle, involving the removal of all exterior access panels, the complete interior, and landing gear to provide full access for nose-to-tail evaluation. Many operators combine the inspection with upgrades such as interior refurbishments and exterior paint.

Matthew Benns, director of maintenance at MB Aviation Services, had a G650 inspected at Provo, and said the communication was professional and client-focused. “The level of client interaction was excellent—among the best I have seen at any MRO,” Benns said. “I felt that my priorities as a client were genuinely listened to and understood.”