N159H · Cessna Citation CJ4 flight activity
99 tracked flights in the 12 months to 31 Jul 2026, on about 6 days a month and an estimated 203 hours in the air.
How N159H has been flying
N159H flies about one and a half times as often as the middle Citation CJ4, inside the 3 to 8 flights a month flown by the middle half of the fleet.
Tracked by ADS-B, so a minimum.
From time in the air. The logbook has the exact total.
Against 3.8 d for the middle Citation CJ4.
Last tracked in July 2026. Published seven days later, by month only.
Month by month
99 flights over 12 active monthsFlights per month · shaded band is the middle half of the fleet (3.4–7.6 a month)
N159H flew more than the middle half of the fleet in 7 of 12 months. Its busiest month was October 2025, with 16 flights.
Its busiest month was October 2025, with 16 flights, and its quietest July 2026, with 1. The record has 48 tracking gaps, so about one flight in 2 may be missing and every count is a minimum.
Utilization
How steadily it has been used: flights, flying days and estimated hours against the type.
Flown far more than most. Harsher on utilization.
Heavy use means more of its maintenance intervals have been used up. Worth checking where it sits in its inspection cycle before a pre-buy.
Against 5.0 for the middle Citation CJ4 (77th). Used harder than most.
Share of flying days from one field.
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.
16 of 99 flights, both directions.
Spread across many destinations.
15 flights crossed a border.
N159H’s flying is spread across many routes. Its most-flown pair of airports carries 16% of flights, 16 of 99, counting both directions. Its top three pairs make up 25%, so about eight flights in ten go somewhere else. Of its 99 tracked flights, 15 (15%) crossed a border.
Fatigue, corrosion, engines and brakes
01 Fatigue
Outside the middle of the fleetHow short were its legs? Airframes age by landings as well as by hours. Many short legs put more pressurization cycles on the structure for the same time in the air.
N159H is out here, on one side or the other
Also graded: short hops. Leg length is shown as context. See this chapter in the sample report →
02 Corrosion
Close to the typeWhere 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.
N159H is in here
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.
N159H is in here
Also graded: hot, high takeoffs; density altitude; dust and dry climate. See this chapter in the sample report →
What the full report adds for N159H
- 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 N159H, 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 N159H
How many hours does N159H fly a year?
About 203 estimated hours in the 12 months to 31 Jul 2026, across 99 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.
How often is N159H flown?
N159H made 99 tracked flights in the 12 months to 31 Jul 2026, about 8 a month, and flew on about 6 days in each month it flew.
Does N159H fly internationally?
15 of its 99 tracked flights in the 12 months to 31 Jul 2026, 15%, crossed a border.
When did N159H 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 N159H 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 N159H?
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 N159H’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. Utilization 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.