The Citation 550 is a mid-size business jet built by Cessna for corporate and charter operators

The Cessna Citation 550 is a twin-engine jet aircraft designed for business travel and charter operations. It first flew in 1979 and remained in production until 1989, making it one of the most common mid-size jets still operating today. The aircraft carries up to eight passengers plus two crew members and has a maximum range of roughly 2,000 nautical miles, which covers most routes within North America and some transatlantic flights with reserves.

The Citation 550 uses two Pratt & Whitney JT15D turbofan engines, the same powerplant found in several other light and mid-size business jets. These engines produce about 2,500 pounds of thrust each and are known for reliability and relatively low operating costs compared to larger business jets. The aircraft cruises at around 430 knots (roughly 495 mph) at altitude, making it faster than most single-engine planes but slower than larger cabin-class jets.

Owners and operators use the Citation 550 for scheduled charter flights, on-demand air taxi services, and corporate transportation. Because the aircraft is older but well-established, parts availability is good and maintenance shops familiar with the type are widespread. This combination of capability and operational history makes the 550 a practical choice for flight schools, charter companies, and small air taxi operators.

Key Takeaways

  • The Citation 550 is a twin-engine business jet that carries eight passengers and two crew, with a range of about 2,000 nautical miles.
  • The aircraft uses Pratt & Whitney JT15D engines, which are known for reliability and lower operating costs than larger business jet engines.
  • Maintenance and parts support are widely available because the 550 has been in service since 1979 and many examples remain in active use.
  • The 550 requires two may have access to pilots and regular inspections under Part 135 (charter) or Part 91 (corporate) regulations depending on how it is operated.
  • Fuel consumption is roughly 200 to 250 gallons per hour depending on altitude, weight, and flight profile.

Engine and Performance Specifications

Each JT15D engine on the Citation 550 produces 2,500 pounds of thrust at takeoff and is rated for a service life of 5,000 to 7,000 hours before overhaul becomes mandatory. Overhaul costs for a JT15D typically run between $400,000 and $600,000 per engine, which is a significant expense but spread across many flight hours. Operators track engine time carefully and plan overhauls well in advance to avoid unexpected downtime.

The aircraft needs roughly 3,500 feet of runway to take off at maximum weight and can land in about 2,800 feet, making it suitable for many regional airports that cannot accommodate larger jets. Maximum altitude is 43,000 feet, though most charter and corporate flights operate between 25,000 and 35,000 feet where fuel efficiency is better and weather avoidance is easier. The pressurization system maintains a cabin altitude of 8,000 feet even when the aircraft is at 43,000 feet, which reduces fatigue on passengers during long flights.

Regulatory Requirements for Operation

The Citation 550 must be operated under either Part 135 (charter and air taxi) or Part 91 (corporate and private) regulations set by the Federal Aviation Administration. Part 135 operators must hold an air carrier certificate, maintain detailed maintenance records, and conduct regular inspections. Part 91 operators have fewer regulatory requirements but cannot carry paying passengers and must maintain the aircraft to a standard that keeps it airworthy.

All Citation 550 operations require two may have access to pilots holding commercial licenses with multi-engine and instrument ratings. The aircraft is not approved for single-pilot operation. Pilots must complete type-rating training specific to the Citation 550 before they can act as pilot in command, and recurrent training is required every 12 months. Training typically takes 40 to 60 hours of ground and flight instruction for a pilot new to the type.

Maintenance is performed on a schedule set by Cessna and tracked by the operator. Inspections include a 100-hour inspection (or annual inspection for Part 91 operators), progressive inspections every 400 hours, and major overhauls at 5,000-hour intervals on the airframe. Operators must also comply with airworthiness directives issued by the FAA, which address specific safety or reliability issues found across the fleet.

Fuel Consumption and Operating Costs

The Citation 550 burns between 200 and 250 gallons of Jet A fuel per hour depending on altitude, weight, and throttle setting. A typical cross-country flight at cruise altitude and normal power settings uses about 220 gallons per hour. At current Jet A prices, which vary by location and market conditions, fuel cost for a one-hour flight runs between $600 and $900, though this varies significantly based on fuel availability at the departure and destination airports.

Beyond fuel, operators must budget for crew salaries, maintenance reserves, hangar or tie-down fees, insurance, and periodic overhauls. A rough estimate for total operating cost (including all fixed and variable expenses) is $3,000 to $4,500 per flight hour for a well-maintained Citation 550, though this varies based on how intensively the aircraft is used and local labor rates. Charter operators typically charge $4,000 to $6,000 per flight hour to cover these costs and generate profit.

Cabin Layout and Passenger Comfort

The Citation 550 has a cabin that is roughly 20 feet long, 5 feet wide, and 5.5 feet tall, providing enough space for eight passengers to sit in relative comfort. The cabin is pressurized and air-conditioned, and most aircraft are equipped with a galley (small kitchen), lavatory, and entertainment systems. Seating is typically arranged with four to six seats facing forward and two seats facing aft, though configurations vary by operator.

The cabin is quieter than older turboprop aircraft but louder than larger cabin-class jets. Noise levels are manageable for conversation and work during flight. The aircraft can be equipped with oxygen systems for high-altitude flight, though the pressurization system makes supplemental oxygen unnecessary for normal operations below 43,000 feet.

Maintenance Considerations for Owners and Operators

The Citation 550 has a solid maintenance record and parts availability is good because many aircraft remain in service. Engine components, avionics, and airframe parts are available through Cessna, aftermarket suppliers, and used parts brokers. Maintenance shops that specialize in Citation aircraft are found in most major metropolitan areas, which keeps repair costs competitive and reduces downtime.

Common maintenance issues on older Citation 550s include corrosion in unpressurized areas, wear on landing gear components, and age-related issues with avionics and electrical systems. Many operators upgrade to modern glass cockpits (such as the Garmin G1000 NXi) to improve safety and reduce pilot workload, though these upgrades cost $500,000 to $1 million depending on the scope of work. Regular inspections catch problems early, and preventive maintenance is far less expensive than emergency repairs.

Comparison to Other Mid-Size Business Jets

The Citation 550 competes with aircraft like the Learjet 35 and the Hawker 400, which are similar in age, size, and capability. The 550 is generally considered more economical to operate than the Learjet due to lower fuel burn and engine overhaul costs. The Hawker 400 is slightly larger and faster but burns more fuel. The Citation 550 is also less expensive to purchase on the used market, which makes it attractive to operators with tighter budgets.

Newer mid-size jets like the Citation XLS and the Bombardier Learjet 75 offer better avionics, lower noise levels, and improved fuel efficiency, but they cost significantly more to purchase and operate. For operators who need reliable, proven equipment and can accept older avionics and slightly higher fuel burn, the Citation 550 remains a practical choice.

Frequently Asked Questions

How many hours can a Citation 550 fly before major overhaul?

The airframe is certified for 20,000 flight hours total, and engines require overhaul at 5,000 to 7,000 hours. Most Citation 550s in service today have between 10,000 and 18,000 total hours, so airframe life is not usually the limiting factor. Engine overhaul is the major cost that operators plan for.

Can a Citation 550 fly across the Atlantic?

The 550 has a maximum range of about 2,000 nautical miles, which is not enough for a direct transatlantic crossing. However, it can make the journey with a fuel stop in Newfoundland or Iceland. Many operators do conduct these flights, though they require careful fuel planning and favorable winds.

What is the difference between a Citation 550 and a Citation 551?

The Citation 551 is a later variant with more powerful engines (2,900 pounds of thrust each), better climb performance, and slightly higher cruise speed. The 551 also has a larger fuel capacity. Both aircraft are similar in size and cabin layout, but the 551 is more capable and commands a higher purchase price on the used market.

How long does a Citation 550 type rating take to obtain?

A pilot new to the Citation 550 typically needs 40 to 60 hours of ground and flight training to earn a type rating. Training includes classroom instruction on systems, simulator time, and flight training with a may have access to instructor. The exact duration depends on the pilot's experience and how quickly they master the aircraft.

What is the cost to buy a used Citation 550 today?

Used Citation 550s typically sell for $2 million to $4 million depending on total flight hours, condition, avionics upgrades, and interior refurbishment. Aircraft with lower hours and modern glass cockpits command higher prices. Prices vary based on market demand and the specific aircraft's history.