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Duncan Aviation Completes Two Gulfstream G650 144-Month Inspections

Duncan Aviation Completes Two Gulfstream G650 144-Month Inspections
Duncan Aviation has recently concluded simultaneous 144-month inspections on two Gulfstream G650 aircraft at its facilities in Lincoln, Nebraska, and Battle Creek, Michigan. The 144-month inspection represents one of the most extensive maintenance procedures in an aircraft’s lifecycle. It involves the removal of all exterior access panels, the complete interior, and the landing gear, allowing technicians to conduct a comprehensive nose-to-tail examination.
Comprehensive Maintenance and Client-Centered Service
Operators typically use the extended downtime required for these inspections to undertake additional upgrades, including interior refurbishments, exterior paintwork, and cabin enhancements. Duncan Aviation’s three maintenance, repair, and overhaul (MRO) centers—located in Battle Creek, Lincoln, and Provo—are fully equipped to support the Gulfstream G650. Each facility boasts specialized tooling, ample hangar space, and dedicated Gulfstream teams. The technicians, all factory-trained at FlightSafety, bring extensive hands-on experience to these complex inspections.
Matthew Benns, director of maintenance, who was present in Provo during the 144-month inspection of his G650, praised the level of client engagement. He highlighted the open and honest communication, noting that his priorities were genuinely understood and addressed. Benns emphasized the consistent focus on safety and meeting the principal’s expectations throughout the process.
Similarly, Lee Noble, accountable manager of Sybajet and a long-standing Duncan Aviation client, coordinated an exterior paint project alongside the inspection to reduce aircraft downtime. Noble explained that combining the two services at the Lincoln facility avoided multiple trips from the United Arab Emirates and minimized the aircraft’s time out of service. He commended Duncan Aviation for its technical expertise, high-quality work, and reliable adherence to schedules and budgets, having utilized all three MRO locations for various services including paint, interior refurbishment, warranty work, and inspections.
Industry Context and Competitive Challenges
All three Duncan Aviation MRO centers have completed interior refurbishments for the G650, with Lincoln and Provo also delivering new paint schemes. On-site design centers provide professional guidance, collaborating closely with clients to develop bespoke interiors and exterior finishes tailored to individual preferences.
These accomplishments come amid intensifying competition within the business aviation maintenance sector. Competitors such as ExecuJet Malaysia and Cutter Aviation have recently obtained MRO approvals for the Gulfstream G650ER, potentially prompting them to enhance their service offerings and leverage established relationships with Gulfstream. This evolving competitive landscape may lead to increased scrutiny of Duncan Aviation’s pricing structures and service reliability as clients evaluate their options.
Furthermore, the aerospace industry’s growing emphasis on supply-chain integrity—driven by concerns over counterfeit parts and supply-chain fraud, as underscored by organizations like DUST Identity—poses additional challenges. Ensuring the authenticity of components and strict compliance with safety standards will remain paramount for Duncan Aviation as it strives to uphold its reputation and maintain client trust in a rapidly changing market.

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