Tail record, Bombardier Challenger 300 (Challenger 350), United States register
A busy Challenger 300: flown more than three quarters of its type.
01
Busier than 88% of Challenger 300s, by flights a month.
Tracked flights
338
in the twelve months, about 28 a month
Busiest Challenger 300s
101st
of 836 tracked, by flights a month
Estimated hours
≈506
in the twelve months, from time in the air
Flights a month, every tracked Challenger 300
02
N789QS flew more than the middle half of the fleet in 7 of 12 months. Its busiest month was January 2026, with 65 flights.
Its busiest month was January 2026, with 65 flights. It did not fly in May 2026. The record has 136 tracking gaps, so about one flight in 2 may be missing and every count is a minimum.
03
Each measure against all 836 tracked Challenger 300s. Every dot is one aircraft; the gold one is N789QS.
Chapter 4
Harsher than its type
How hard has it been used?
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.
Flights a monthLead measure. 88th percentile
30.1middle Challenger 300 8.4
Days flown a month87th percentile
15.4 dmiddle Challenger 300 5.8 d
Estimated hours a year84th percentile
≈557 hrmiddle Challenger 300 ≈167 hr
Harsher means harder on the aircraft than three quarters of Challenger 300s; typical is the middle half. Percentiles compare this aircraft with every tracked Challenger 300, over its record since 1 Jan 2025.
04
The fleet is shown, and whether N789QS sits inside its middle half. Its grades and values are in the full report.
Chapter 1
Hours per landing, middle Challenger 300: 1.6 : 1
Also graded: short hops. Leg length is shown as context.
N789QS sits inside the middle half. Its grade and exact place are in the full report.
Unlock this chapterChapter 2
Salt air, middle Challenger 300: 4%
Also graded: damp air, freeze–thaw, near the coast and moisture in the air.
N789QS sits inside the middle half. Its grade and exact place are in the full report.
Unlock this chapterChapter 3
Short runways, middle Challenger 300: 20%
Also graded: hot, high takeoffs; density altitude; dust and dry climate.
N789QS sits inside the middle half. Its grade and exact place are in the full report.
Unlock this chapter05
All four chapters, every flight since January 2025 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
N789QS, Bombardier Challenger 300
$395one aircraft
Weighing it against other Challenger 300s? Put it on a Spotlight board with up to four others. Included with Unlimited, $995 a month.
06
The Aircraft Ledger. “N789QS: how this Bombardier Challenger 300 is flown.” Data through 31 Jul 2026. theaircraftledger.com/aircraft/n789qs
About 506 estimated hours in the 12 months to 31 Jul 2026, across 338 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.
N789QS made 338 tracked flights in the 12 months to 31 Jul 2026, about 28 a month, and flew on about 17 days in each month it flew.
20 of its 338 tracked flights in the 12 months to 31 Jul 2026, 6%, crossed a border.
It was last tracked in July 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 Challenger 300s, 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
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.