The Aircraft LedgerCheck a tail

Tail record, Cessna Citation X, United States register

N121AT: how this Cessna Citation X is flown

A Citation X on short legs: more landings for its hours than three quarters of its type.

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Figures are for the twelve months to 31 Jul 2026; named aircraft are shown a week behind. Grades compare its record since 1 Jan 2025 with every tracked Citation X.

01

How N121AT compares.

18 tracked flights in the twelve months to 31 Jul 2026.

Tracked flights

18

in the twelve months, about 2 a month

Days flown a month

1.7

in the months it flew

Estimated hours

≈18

in the twelve months, from time in the air

02

Month by month.

Its busiest month was July 2026, with 4 flights.

Tracked flights

Its busiest month was July 2026, with 4 flights. It did not fly in September 2025. The record has 16 tracking gaps, so about one flight in 1 may be missing and every count is a minimum.

Source: The Aircraft Ledger, flight data for N121AT, the twelve months to 31 Jul 2026. Flight counts only: airports and exact dates are left out of this page.

03

The free chapter.

Each measure against all 282 tracked Citation Xs. Every dot is one aircraft; the gold one is N121AT.

Chapter 1

Fatigue

Harsher than its type

How short were its legs?

Utilization isn’t graded for N121AT: too few of its flights were tracked to count its use fairly, in the full report too. So its free chapter here is Fatigue, which doesn’t depend on catching every flight.

Short legs put more pressurization cycles on the structure for the same time in the air. Worth checking its cycle-based inspection limits before a pre-buy.

  • Hours per landingLead measure. 3rd percentile

    1.0 : 1middle Citation X 1.7 : 1

  • Short hops92nd percentile

    52%middle Citation X 29%

  • Leg length10th percentile

    290 nmmiddle Citation X 605 nm

Harsher means harder on the aircraft than three quarters of Citation Xs; typical is the middle half. Percentiles compare this aircraft with every tracked Citation X, over its record since 1 Jan 2025.

04

What only the report shows.

The fleet is shown, and whether N121AT sits inside its middle half. Its grades and values are in the full report.

Chapter 2

Corrosion

Salt air, middle Citation X: 2%

Also graded: damp air, freeze–thaw, near the coast and moisture in the air.

Not graded: not enough data.

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Chapter 3

Engines and brakes

Short runways, middle Citation X: 26%

Also graded: hot, high takeoffs; density altitude; dust and dry climate.

N121AT sits inside the middle half. Its grade and exact place are in the full report.

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Chapter 4

Utilization

Flights a month, middle Citation X: 8.8

Also graded: days flown a month and estimated hours a year.

Not graded: too few of its flights were tracked.

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05

The full report on N121AT.

All four chapters, every flight since January 2025 leg by leg, and the one thing to ask the seller.

TailCheck report

N121AT, Cessna Citation X

$395one aircraft

  • All four chapters, graded
  • The one thing to ask, with records to request
  • Every flight since January 2025, leg by leg
  • Its weekly and seasonal rhythm
  • PDF, CSV and a share link; open for three months, kept up to date
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Weighing it against other Citation Xs? Put it on a Spotlight board with up to four others. Included with Unlimited, $995 a month.

06

Questions about N121AT.

Cite this data

The Aircraft Ledger. “N121AT: how this Cessna Citation X is flown.” Data through 31 Jul 2026. theaircraftledger.com/aircraft/n121at

How many hours does N121AT fly a year?

About 18 estimated hours in the 12 months to 31 Jul 2026, across 18 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.

How often is N121AT flown?

N121AT made 18 tracked flights in the 12 months to 31 Jul 2026, about 2 a month, and flew on about 2 days in each month it flew.

Does N121AT fly internationally?

None of its 18 tracked flights in the 12 months to 31 Jul 2026 crossed a border.

When did N121AT last fly?

It was last tracked in July 2026. We publish an aircraft’s flights seven days after they happen, and show them by month only.

Why don’t you show which airports N121AT uses?

We leave out airports, bases and exact dates on purpose. We show how an aircraft has been used, not where it goes.

What’s in the full TailCheck report for N121AT?

All four graded chapters (Fatigue, Corrosion, Engines and brakes, and Utilization), each against the tracked Citation Xs, plus the operational summary and operating rhythm, as a PDF, CSV and share link. It costs $395, or $995 a month for unlimited reports and Spotlight.

Fleet statisticsWhat’s normal for a Cessna Citation XBuyer’s guideWhat to check before buying a used Citation XSpotlightCompare N121AT with other Citation Xs

Method: flight data, every count a minimum. Estimated hours from time in the air. About our data

Owners and operators can ask us not to publish an aircraft. Data policy and opt-out

Not a substitute for a pre-purchase inspection or records review. TailCheck shows how an aircraft has been used, not its condition.