N684DT · Cessna Citation CJ4 flight activity
133 tracked flights in the 12 months to 31 Jul 2026, on about 6 days a month and an estimated 159 hours in the air.
How N684DT has been flying
Tracked by ADS-B, so a minimum.
From time in the air. The logbook has the exact total.
In the months it flew.
Last tracked in July 2026. Published seven days later, by month only.
Month by month
133 flights over 12 active monthsFlights per month
Its busiest month was June 2026, with 24 flights.
Its busiest month was June 2026, with 24 flights, and its quietest August 2025, with 1. The record has 89 tracking gaps, so about one flight in 1 may be missing and every count is a minimum.
Fatigue
What each landing and pressurization cycle costs the structure: landings per hour and short hops.
Utilization isn’t graded for N684DT: 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.
Legs like most of the type. Typical on fatigue.
It lands about as often for its hours as most of the fleet, so cycles have built up at a normal pace.
Against 1.3 : 1 for the middle Citation CJ4 (39th). Close to the type.
The spread of its trip lengths, against the type.
The data behind it
Against all 439 tracked Citation CJ4s, over its record since 1 Jan 2025.How it travels
Its flying is spread across many routes.
23 of 133 flights, both directions.
Spread across many destinations.
0 flights crossed a border.
N684DT’s flying is spread across many routes. Its most-flown pair of airports carries 17% of flights, 23 of 133, counting both directions. Its top three pairs make up 32%, so about seven flights in ten go somewhere else. None of its tracked flights crossed a border.
Corrosion, engines and brakes, and utilization
02 Corrosion
Not graded: not enough dataWhere does it spend its nights? Where a jet sleeps shapes how fast it corrodes. Salt and damp overnight are what an inspector looks at first.
Also graded: damp air, freeze–thaw, near the coast and moisture in the air. See this chapter in the sample report →
03 Engines and brakes
Close to the typeHow hard were its airfields? Short, hot and high runways ask for more thrust on every takeoff and harder braking on every landing. That wear doesn’t show in the hours.
N684DT is in here
Also graded: hot, high takeoffs; density altitude; dust and dry climate. See this chapter in the sample report →
04 Utilization
Not graded: too few of its flights were trackedHow hard has it been used? Heavy use spends maintenance intervals faster; long spells parked bring their own wear. Both are worth knowing before a pre-buy.
Also graded: days flown a month and estimated hours a year. See this chapter in the sample report →
What the full report adds for N684DT
- 01 All four chapters graded, with the evidence behind every grade
- 02 The operational summary: the whole aircraft in one read
- 03 Its longest stay away from base, and what the record does and doesn’t show about it
- 04 Its home base pattern and operating rhythm: busiest days and months
- 05 PDF, CSV and a share link
$395 for N684DT, one payment
A fraction of the cost of a pre-buy inspection, before you book one.
Other Citation CJ4s
Tails flown at a similar rate, with their tracked flights in the 12 months to 31 Jul 2026. Each has its own free page.
About N684DT
How many hours does N684DT fly a year?
About 159 estimated hours in the 12 months to 31 Jul 2026, across 133 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.
How often is N684DT flown?
N684DT made 133 tracked flights in the 12 months to 31 Jul 2026, about 11 a month, and flew on about 6 days in each month it flew.
Does N684DT fly internationally?
None of its 133 tracked flights in the 12 months to 31 Jul 2026 crossed a border.
When did N684DT 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 N684DT 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 N684DT?
All four graded chapters (Fatigue, Corrosion, Engines and brakes, and Utilization), each against the tracked Citation CJ4s, 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.
How this page is made
Everything here comes from N684DT’s ADS-B track, the position signal aircraft broadcast, over the 12 months to 31 Jul 2026. ADS-B misses some flights, so every count is a minimum. Flights appear seven days after they happen, by month only, and hours are estimated from time in the air; the logbook has the real totals. Airports, bases and exact dates are left out on purpose. How grades work: each graded measure is placed among the tracked Citation CJ4s against the middle aircraft, the 50th percentile. Between the 25th and 75th it is typical; outside that band it is gentler or harsher. Fatigue is graded here for free; for the other chapters this page shows the middle value of the fleet and whether this aircraft sits inside the middle half or outside it. Their grades and values are in the report, not on this page. Owners and operators can ask us not to publish an aircraft’s activity.