The Aircraft LedgerCheck a tail

Tail record, Bombardier Learjet 31, United States register

N31DT: how this Bombardier Learjet 31 is flown

12 tracked flights in the 12 months to 31 Jul 2026, on about 2 days a month and an estimated 11 hours in the air.

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Figures are for the twelve months to 31 Jul 2026; named aircraft are shown a week behind. Grades compare its record since 1 Jan 2025 with every tracked Learjet 31.

01

How N31DT compares.

12 tracked flights in the twelve months to 31 Jul 2026.

Tracked flights

12

in the twelve months, about 1 a month

Days flown a month

2.0

in the months it flew

Estimated hours

≈11

in the twelve months, from time in the air

02

Month by month.

Its busiest month was June 2026, with 8 flights.

Tracked flights

Its busiest month was June 2026, with 8 flights. It did not fly in September 2025. The record has 8 tracking gaps, so about one flight in 2 may be missing and every count is a minimum.

Source: The Aircraft Ledger, flight data for N31DT, the twelve months to 31 Jul 2026. Flight counts only: airports and exact dates are left out of this page.

03

The free chapter.

Each measure against all 80 tracked Learjet 31s. The shaded band is the middle half; the gold dot is N31DT.

Chapter 1

Fatigue

Not graded

How short were its legs?

Utilization isn’t graded for N31DT: 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.

Not compared: no percentile for this aircraft yet.

  • Hours per landingLead measure. Not compared: no percentile for this aircraft yet.

    0.9 : 1Not compared

  • Short hopsNot compared: no percentile for this aircraft yet.

    59%Not compared

  • Leg lengthExplains the hours per landing; not graded twice.

    232 nmContext, not graded

Harsher means harder on the aircraft than three quarters of Learjet 31s; typical is the middle half. Percentiles compare this aircraft with every tracked Learjet 31, over its record since 1 Jan 2025.

04

What only the report shows.

The fleet is shown, and whether N31DT sits inside its middle half. Its grades and values are in the full report.

Chapter 2

Corrosion

Salt air, middle Learjet 31: 0%

Also graded: damp air, freeze–thaw, near the coast and moisture in the air.

Not graded: not enough data.

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Chapter 3

Engines and brakes

Short runways, middle Learjet 31: 3%

Also graded: hot, high takeoffs; density altitude; dust and dry climate.

Not graded: not enough data.

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Chapter 4

Utilization

Flights a month, middle Learjet 31: 4.4

Also graded: days flown a month and estimated hours a year.

Not graded: too few of its flights were tracked.

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05

The full report on N31DT.

All four chapters, every flight since January 2025 leg by leg, and the one thing to ask the seller.

TailCheck report

N31DT, Bombardier Learjet 31

$395one aircraft

  • All four chapters, graded
  • The one thing to ask, with records to request
  • Every flight since January 2025, leg by leg
  • Its weekly and seasonal rhythm
  • PDF, CSV and a share link; open for three months, kept up to date
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Weighing it against other Learjet 31s? Put it on a Spotlight board with up to four others. Included with Unlimited, $995 a month.

06

Questions about N31DT.

Cite this data

The Aircraft Ledger. “N31DT: how this Bombardier Learjet 31 is flown.” Data through 31 Jul 2026. theaircraftledger.com/aircraft/n31dt

How many hours does N31DT fly a year?

About 11 estimated hours in the 12 months to 31 Jul 2026, across 12 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.

How often is N31DT flown?

N31DT made 12 tracked flights in the 12 months to 31 Jul 2026, about 1 a month, and flew on about 2 days in each month it flew.

Does N31DT fly internationally?

2 of its 12 tracked flights in the 12 months to 31 Jul 2026, 17%, crossed a border.

When did N31DT last fly?

It was last tracked in June 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 N31DT 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 N31DT?

All four graded chapters (Fatigue, Corrosion, Engines and brakes, and Utilization), each against the tracked Learjet 31s, 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.

Fleet statisticsWhat’s normal for a Bombardier Learjet 31SpotlightCompare N31DT with other Learjet 31s

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.