N138SP · Cessna Citation X flight activity
158 tracked flights in the 12 months to 31 Jul 2026, on about 10 days a month and an estimated 288 hours in the air.
How N138SP has been flying
N138SP flies about two times as often as the middle Citation X, inside the 5 to 20 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 5.7 d for the middle Citation X.
Last tracked in July 2026. Published seven days later, by month only.
Month by month
158 flights over 10 active monthsFlights per month · shaded band is the middle half of the fleet (5.1–20.2 a month)
N138SP flew more than the middle half of the fleet in 3 of 12 months. Its busiest month was March 2026, with 32 flights.
Its busiest month was March 2026, with 32 flights. It did not fly in May 2026. The record has 52 tracking gaps, so about one flight in 3 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.
Used about as much as most. Typical on utilization.
Used at about the rate of most of the fleet, so its maintenance intervals have been used up at a normal pace.
Against 8.8 for the middle Citation X (67th). Used like a typical Cessna Citation X.
Share of flying days from one field.
The data behind it
Against all 282 tracked Citation Xs, over its record since 1 Jan 2025.How it travels
Its flying is spread across many routes.
11 of 158 flights, both directions.
Spread across many destinations.
5 flights crossed a border.
N138SP’s flying is spread across many routes. Its most-flown pair of airports carries 7% of flights, 11 of 158, counting both directions. Its top three pairs make up 13%, so about nine flights in ten go somewhere else. Of its 158 tracked flights, 5 (3%) crossed a border.
Fatigue, corrosion, engines and brakes
01 Fatigue
Close to the typeHow 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.
N138SP is in here
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.
N138SP 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.
N138SP 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 N138SP
- 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 N138SP, one payment
A fraction of the cost of a pre-buy inspection, before you book one.
Other Citation Xs
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 N138SP
How many hours does N138SP fly a year?
About 288 estimated hours in the 12 months to 31 Jul 2026, across 158 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.
How often is N138SP flown?
N138SP made 158 tracked flights in the 12 months to 31 Jul 2026, about 13 a month, and flew on about 10 days in each month it flew.
Does N138SP fly internationally?
5 of its 158 tracked flights in the 12 months to 31 Jul 2026, 3%, crossed a border.
When did N138SP 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 N138SP 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 N138SP?
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.
How this page is made
Everything here comes from N138SP’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 Xs 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.