Updated
Tail record, Eclipse 550, United States register
Flown about as much as most 550s: inside the middle half of its type.
01
Busier than 67% of 550s, by flights a month.
Tracked flights
26
in the twelve months, about 2 a month
Busiest 550s
64th
of 192 tracked, by flights a month
Estimated hours
≈24
in the twelve months, from time in the air
Flights a month, every tracked 550
02
N301MK flew more than the middle half of the fleet in 2 of 12 months. Its busiest month was April 2026, with 9 flights.
Its busiest month was April 2026, with 9 flights. It did not fly in November 2025. The record has 13 tracking gaps, so about one flight in 2 may be missing and every count is a minimum.
03
Each measure against all 192 tracked 550s. Every dot is one aircraft; the gold one is N301MK.
Chapter 4
Typical for its type
How hard has it been used?
Used at about the rate of most of the fleet, so its maintenance intervals have been used up at a normal pace.
Flights a monthLead measure. 67th percentile
4.7middle 550 3.8
Days flown a month70th percentile
3.5 dmiddle 550 2.8 d
Estimated hours a year71st percentile
≈79 hrmiddle 550 ≈59 hr
Harsher means harder on the aircraft than three quarters of 550s; typical is the middle half. Percentiles compare this aircraft with every tracked 550, over its record since 4 Nov 2024.
04
The fleet is shown, and whether N301MK sits inside its middle half. Its grades and values are in the full report.
Chapter 1
Hours per landing, middle 550: 1.3 : 1
Also graded: short hops. Leg length is shown as context.
N301MK sits inside the middle half. Its grade and exact place are in the full report.
Unlock this chapterChapter 2
Salt air, middle 550: 1%
Also graded: damp air, freeze–thaw, near the coast and moisture in the air.
Not graded: not enough data.
Unlock this chapterChapter 3
Short runways, middle 550: 0%
Also graded: hot, high takeoffs; density altitude; dust and dry climate.
N301MK sits inside the middle half. Its grade and exact place are in the full report.
Unlock this chapter05
All four chapters, every flight since November 2024 leg by leg, and the one thing to ask the seller.
Page one
Every chapter has this table, with a note on any assumption behind it.
days
Ask for
N301MK, Eclipse 550
$395one aircraft
Weighing it against other 550s? Put it on a Spotlight board with up to four others. Included with Unlimited, $995 a month.
06
The Aircraft Ledger. “N301MK: how this Eclipse 550 is flown.” Data through 31 Oct 2026. theaircraftledger.com/aircraft/n301mk
About 24 estimated hours in the 12 months to 31 Oct 2026, across 26 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.
N301MK made 26 tracked flights in the 12 months to 31 Oct 2026, about 2 a month, and flew on about 4 days in each month it flew.
None of its 26 tracked flights in the 12 months to 31 Oct 2026 crossed a border.
It was last tracked in August 2026. We publish an aircraft’s flights seven days after they happen, and show them by month only.
We leave out airports, bases and exact dates on purpose. We show how an aircraft has been used, not where it goes.
All four graded chapters (Fatigue, Corrosion, Engines and brakes, and Utilization), each against the tracked 550s, 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.
Method: flight data, every count a minimum. Estimated hours from time in the air. About our data
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Not a substitute for a pre-purchase inspection or records review. TailCheck shows how an aircraft has been used, not its condition.