West Star Aviation Outlines Scope and Upgrade Opportunities for Hawker 800/900 Series 96-Month Inspections
Why It MattersHeavy inspection cycles increasingly double as consolidation points where operators bundle avionics, interior and paint work to limit aircraft downtime and repeated teardown costs.
What happened
West Star Aviation outlined the scope of the 96-month inspection required for Hawker 800 and 900 series aircraft, describing it as one of the most comprehensive maintenance events the aircraft undergoes. The inspection covers structural components, aircraft systems, avionics, electrical systems, and flight controls. All flight controls and the ventral tank are removed, the aircraft interior is fully stripped for structural access, and heavy functional checks are performed.
West Star operates maintenance facilities at East Alton, IL (ALN), Grand Junction, CO (GJT), Chattanooga, TN (CHA), and Perryville, MO (PCD), and says it keeps non-destructive testing (NDT) technicians on staff to perform required inspections in-house, reducing reliance on outside vendors. The company says operators can combine additional work with the 96-month event to avoid duplicated access and removal, since the aircraft is already substantially disassembled.
Avionics and connectivity upgrades commonly performed alongside the inspection include Pro Line 21 modernization packages, Cabin Management System replacement, Starlink connectivity, Gogo Galileo HDX connectivity, and Garmin GI 275 standby altimeter modifications. With the cabin interior already removed, interior refurbishment such as wood veneer refurbishment, soft goods and carpet replacement, seat refurbishment, and LED lighting upgrades can also be completed in the same period. West Star also recommends considering exterior repaint during the inspection, citing protection against corrosion, UV exposure, moisture, and environmental contaminants, and notes it operates four paint facilities where this work can be coordinated with the inspection.
Industry impact & what to watch
This case illustrates how major recurring inspections on aging business jets function as more than regulatory compliance events: once an aircraft is torn down to structure, the marginal cost of adding avionics, interior, or paint work falls sharply because access and removal labor is already being paid for. MRO providers that can offer NDT, avionics installation, interior refurbishment, and paint under one roof are positioned to capture that bundled spend rather than losing it to specialist shops.
For the Hawker 800/900 fleet specifically, the 96-month event is becoming a natural decision point for connectivity retrofits such as Starlink and Gogo Galileo HDX, as well as Pro Line 21 avionics modernization, since operators are already committing the aircraft to extended downtime. How many operators actually elect to bundle this work, and whether West Star's four-site network translates into shorter overall turnaround versus single-site competitors, is what will determine whether this scope outline shifts volume toward the company.
