The heavy maintenance check of the Cessna Citation-X C750 aircraft belonging to the Flight Means Unit (FMU) of the Hellenic Civil Aviation Authority (HCAA) has been successfully completed, according to an official announcement.

The maintenance was carried out at Athens International Airport by the HCAA’s specialized technical team, comprising aircraft engineers certified in categories B1, B2, and C. The FMU is an EASA Part-145 and Part-CAMO certified organization, upholding high safety and quality standards.

The maintenance package included:

• 10-year scheduled inspection
• All periodic checks (annual, biennial, and five-year)

Key systems overhauled:

• Landing gear
• Flight control system
• Fuel system
• Hydraulic systems
• Engines & APU
• Fuselage pressurization
• Avionics
• Cockpit and passenger cabin

HCAA Commander Mr. Giorgos Saounatsos, himself an aeronautical engineer, visited the aircraft and the FMU technical team twice during the two-month maintenance period. His presence emphasized the systematic and targeted effort that led to the successful outcome, highlighting the expertise and organizational competence of the FMU personnel.

Unique Role in Air Navigation Checks

The HCAA is among the few air navigation service providers worldwide that:

• Owns a dedicated aircraft
• Operates an in-house Flight Inspection Unit for aerial checks of air navigation systems and procedures

The Cessna Citation-X C750, the world’s fastest business jet, has been specially modified for this purpose and is also used to provide services to the Hellenic Air Force and the Republic of Cyprus.

Following maintenance, the aircraft successfully completed an acceptance test flight, reaching its maximum operational altitude of 50,000 feet.