The Cessna 500 Citation i is a light business jet that carries up to eight people and cruises at 400 mph, designed for trips under 1,500 miles where speed and simplicity matter more than range or cabin size.

The Citation i entered service in 1979 and remained in production until 1985, making it one of the most common light jets still flying today. It sits between the smaller Cessna 421 turboprops and the larger Citation II, filling the role of a straightforward, economical business aircraft for companies and charter operators who need jet speed without the complexity or fuel burn of a midsize cabin. The aircraft is pressurized to 25,000 feet, meaning it can climb above weather and fly at altitudes where turboprops cannot.

What distinguishes the Citation i from competing light jets of that era is its simplicity. It has two Pratt & Whitney JT15D turbofan engines—the same engines that power the smaller Citation I/SP—which means parts availability is good and mechanics familiar with the type are relatively straightforward to find. The cabin is narrow (4 feet 10 inches wide) and unpressurized in the cargo area, but the pressurized cabin itself is comfortable for short hops, and the aircraft needs only a crew of one pilot on most flights, though two are common for safety and workload.

Key Takeaways

  • The Citation i carries eight passengers at 400 mph and costs less to operate per hour than larger business jets, making it economical for short-haul corporate travel.
  • Two Pratt & Whitney JT15D engines power the aircraft, and these engines are widely supported by maintenance shops because they appear on multiple Cessna models.
  • The aircraft requires a type rating from the FAA, meaning pilots must train specifically on the Citation i before they can legally fly it.
  • Most Citation i aircraft still in service are 35 to 45 years old, so maintenance costs and engine overhaul reserves are significant factors in operating budgets.
  • The Citation i cannot fly nonstop across the continental United States; it is designed for trips of 1,500 miles or less, with fuel reserves.

Engine Performance and Fuel Consumption

The two JT15D engines produce 2,200 pounds of thrust each and burn approximately 200 gallons per hour at cruise power. This fuel burn is lower than the Citation II (which burns roughly 240 gallons per hour) but higher than the smaller Citation I/SP. The engines are reliable and have a good track record in service, though they are now decades old in most airframes, and many have accumulated significant hours.

Engine overhaul is a major cost for Citation i operators. A complete overhaul of one JT15D engine typically costs between $300,000 and $500,000, depending on the shop and the condition of the engine. Most engines are overhauled on a schedule of 3,500 to 5,000 hours, which means an operator flying 500 hours per year will face an overhaul every 7 to 10 years. This cost is often set aside in a reserve fund rather than paid from operating cash flow.

Pressurization, Altitude, and Cabin Environment

The Citation i is pressurized to maintain a cabin altitude of 8,000 feet when the aircraft is at 25,000 feet, which is comfortable for most passengers on flights under three hours. The cabin is heated and air-conditioned, and the pressurization system is relatively straightforward—fewer components mean fewer failure points and lower maintenance cost than larger jets.

The aircraft can climb to 43,000 feet in ideal conditions, though most operators cruise at 35,000 to 41,000 feet to balance fuel efficiency and the ability to climb above weather. At these altitudes, the aircraft is above most commercial traffic and can often find smoother air than turboprops flying at 25,000 feet or below.

Crew Requirements and Pilot Training

The Citation i can be flown by a single pilot under Part 91 operations (general aviation), though most corporate and charter operators use two pilots for safety, workload management, and insurance reasons. A pilot must hold a commercial or airline transport pilot certificate, an instrument rating, and a type rating specific to the Citation i. The type rating requires ground school, simulator training, and a checkride with an FAA examiner.

Type rating training typically takes 5 to 7 days and costs between $8,000 and $15,000, depending on the training provider and whether the pilot has previous jet experience. Recurrent training (required every 12 months for most operators) takes 2 to 3 days and costs $3,000 to $6,000. These costs are part of the operating budget for any organization that owns or operates a Citation i.

Maintenance, Inspections, and Aging Aircraft Considerations

The Citation i requires an annual inspection and a 100-hour inspection (if flown more than 50 hours per year). The annual inspection typically costs $5,000 to $12,000, depending on what discrepancies are found. Because most Citation i aircraft are now 35 to 45 years old, corrosion, worn components, and systems that need replacement are common, and inspection costs can run higher than on newer aircraft.

The airframe itself has no mandatory retirement age, but the FAA requires inspections for fatigue cracks and corrosion at specific intervals. Pressurized fuselages are particularly vulnerable to corrosion around windows, doors, and fasteners. An operator considering a used Citation i should budget for a thorough pre-purchase inspection, which can cost $15,000 to $30,000 and may uncover expensive repairs.

Range, Payload, and Practical Limits

The Citation i has a maximum range of approximately 1,700 nautical miles with reserves, which translates to about 1,500 statute miles. This is enough to fly from New York to Miami, or from Los Angeles to Denver, but not enough for a nonstop transcontinental flight. With a full load of eight passengers and baggage, the aircraft is at or near its maximum takeoff weight, which reduces range further.

In practice, most operators plan flights of 1,000 to 1,200 miles to may support adequate fuel reserves and to avoid pushing the aircraft to its limits. Longer trips require a fuel stop, which adds time and cost. For operators who regularly need to fly across the continental United States nonstop, a larger aircraft like the Citation II or Citation X is a better choice.

Operating Costs and Economics

The direct operating cost (fuel, oil, engine reserves, and routine maintenance) of a Citation i is typically $2,500 to $3,500 per flight hour, depending on fuel prices, engine condition, and maintenance history. This does not include crew salaries, hangar rent, insurance, or capital depreciation. For a company that flies 400 to 500 hours per year, the total annual operating cost (including all fixed and variable costs) is often $1.5 million to $2.5 million.

Charter operators often charge $3,500 to $5,500 per flight hour to cover these costs and generate profit. The economics work best for operators who fly regularly (at least 300 to 400 hours per year) and have predictable routes. For occasional use, fractional ownership or charter is usually more economical than outright ownership.

Frequently Asked Questions

Can a Citation i fly from the East Coast to the West Coast without stopping?

No. The Citation i has a maximum range of about 1,700 nautical miles with fuel reserves, which is not enough for a nonstop transcontinental flight. A trip from New York to Los Angeles would require a fuel stop in the middle of the country, adding 1 to 2 hours to the total trip time.

How many people can a Citation i carry?

The Citation i is certified for a maximum of eight passengers plus two crew members. In practice, most flights carry 4 to 6 passengers, because a full load of eight passengers plus fuel and baggage approaches the aircraft's maximum weight, which reduces range and performance.

What is a type rating and why do I need one to fly a Citation i?

A type rating is an FAA certification that proves a pilot has trained on a specific aircraft type and understands its systems, performance, and procedures. The Citation i is complex enough that the FAA requires all pilots to hold a type rating before flying it. Training takes about a week and costs $8,000 to $15,000.

How much does it cost to overhaul an engine on a Citation i?

A complete overhaul of one JT15D engine typically costs $300,000 to $500,000. Most engines need overhaul every 3,500 to 5,000 hours of flight time. Operators usually set aside money in a reserve fund each year to cover this cost when it comes due.

Is a Citation i still a good investment today?

A Citation i can be economical if you fly regularly (400+ hours per year) and have short-haul routes. However, most airframes are now 35 to 45 years old, so maintenance costs are higher than on newer aircraft. A thorough pre-purchase inspection is essential before buying a used Citation i.