The Aircraft LedgerCheck a tail

Tail record, Bombardier Learjet 31, United States register

N64NB: how this Bombardier Learjet 31 is flown

7 tracked flights in the 12 months to 31 Jul 2026, on about 1 days a month and an estimated 7 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 N64NB compares.

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

Tracked flights

7

in the twelve months, about 1 a month

Days flown a month

1.0

in the months it flew

Estimated hours

≈7

in the twelve months, from time in the air

02

Month by month.

Its busiest month was August 2025, with 3 flights.

Tracked flights

Its busiest month was August 2025, with 3 flights. It did not fly in September 2025. The record has 6 tracking gaps, so about one flight in 1 may be missing and every count is a minimum.

Source: The Aircraft Ledger, flight data for N64NB, 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 N64NB.

Chapter 1

Fatigue

Not graded

How short were its legs?

Utilization isn’t graded for N64NB: 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.

    62%Not compared

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

    175 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 N64NB 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 N64NB.

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

TailCheck report

N64NB, 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 N64NB.

Cite this data

The Aircraft Ledger. “N64NB: how this Bombardier Learjet 31 is flown.” Data through 31 Jul 2026. theaircraftledger.com/aircraft/n64nb

How many hours does N64NB fly a year?

About 7 estimated hours in the 12 months to 31 Jul 2026, across 7 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.

How often is N64NB flown?

N64NB made 7 tracked flights in the 12 months to 31 Jul 2026, about 1 a month, and flew on about 1 days in each month it flew.

Does N64NB fly internationally?

None of its 7 tracked flights in the 12 months to 31 Jul 2026 crossed a border.

When did N64NB last fly?

It was last tracked in May 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 N64NB 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 N64NB?

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 N64NB 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.