The Aircraft LedgerCheck a tail

Tail record, Bombardier Learjet 35, United States register

N51FN: how this Bombardier Learjet 35 is flown

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

Unlock the full report, $395See a sample report

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 35.

01

How N51FN compares.

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

Tracked flights

13

in the twelve months, about 1 a month

Days flown a month

2.2

in the months it flew

Estimated hours

≈12

in the twelve months, from time in the air

02

Month by month.

Its busiest month was April 2026, with 3 flights.

Tracked flights

Its busiest month was April 2026, with 3 flights. It did not fly in October 2025. The record has 11 tracking gaps, so about one flight in 1 may be missing and every count is a minimum.

Source: The Aircraft Ledger, flight data for N51FN, 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 152 tracked Learjet 35s. The shaded band is the middle half; the gold dot is N51FN.

Chapter 1

Fatigue

Not graded

How short were its legs?

Utilization isn’t graded for N51FN: 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.

    1.0 : 1Not compared

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

    71%Not compared

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

    133 nmContext, not graded

Harsher means harder on the aircraft than three quarters of Learjet 35s; typical is the middle half. Percentiles compare this aircraft with every tracked Learjet 35, over its record since 1 Jan 2025.

04

What only the report shows.

The fleet is shown, and whether N51FN sits inside its middle half. Its grades and values are in the full report.

Chapter 2

Corrosion

Salt air, middle Learjet 35: 1%

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

Not graded: not enough data.

Unlock this chapter

Chapter 3

Engines and brakes

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

Not graded: not enough data.

Unlock this chapter

Chapter 4

Utilization

Flights a month, middle Learjet 35: 6.3

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

Not graded: too few of its flights were tracked.

Unlock this chapter

05

The full report on N51FN.

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

TailCheck report

N51FN, Bombardier Learjet 35

$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
Unlock the full report

See a sample report first

Weighing it against other Learjet 35s? Put it on a Spotlight board with up to four others. Included with Unlimited, $995 a month.

06

Questions about N51FN.

Cite this data

The Aircraft Ledger. “N51FN: how this Bombardier Learjet 35 is flown.” Data through 31 Jul 2026. theaircraftledger.com/aircraft/n51fn

How many hours does N51FN fly a year?

About 12 estimated hours in the 12 months to 31 Jul 2026, across 13 tracked flights. Hours are estimated from time in the air, so the logbook has the exact figure.

How often is N51FN flown?

N51FN made 13 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 N51FN fly internationally?

None of its 13 tracked flights in the 12 months to 31 Jul 2026 crossed a border.

When did N51FN 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 N51FN 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 N51FN?

All four graded chapters (Fatigue, Corrosion, Engines and brakes, and Utilization), each against the tracked Learjet 35s, 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 35SpotlightCompare N51FN with other Learjet 35s

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.