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Illustration of a Learjet 45. Not a photo of N401SF.
Illustration of the Learjet 45, not a photo of N401SF.

N401SF Learjet 45

Serial number 247. Registered to Lear 401 LLC, Fayetteville, AR, US.

  • 51,000 ftCeiling
Learjet 45: specs, US fleet and every tail number

INSIDE

The Learjet 45 cabin.

Illustrations of a representative Learjet 45 cabin, not N401SF’s. Every aircraft’s completion differs. Walk through the cabin in 3D. Explore the Learjet 45 interior and layout. Learjet 45 interior: cabin size and seat map.

Illustration of a Learjet 45 type cabin, 59 inches high and 61 inches wide, with eight passenger chairs in two facing clubs
A representative Learjet 45 cabin.
Top-down view of a Learjet 45 cabin. Illustrative 8-passenger layout: two facing four-seat clubs, forward galley and aft lavatory.
Illustrative 8-passenger layout: two facing four-seat clubs, forward galley and aft lavatory.

SPECIFICATIONS

Learjet 45 specs

Published figures for the type, from public sources. A given aircraft varies with its completion, weight and mods.

Full Learjet 45 specs, range and cabin

Model
Learjet 45
Serial number
247
Engines
2 × Honeywell TFE731-20 series
Thrust
3,500 lbf each
Published Mach
0.81
Ceiling
51,000 ft
ICAO type
LJ45

THE AIRCRAFT’S LIFE

N401SF on the registry.

Registration events from FAA records, compiled October 2026. Maintenance, damage and component history live in the logbooks, not the registry.

  1. Lear 401 LLC

    Certificate of registration issued as N401SF.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N401SF
Status
Current as of October 2026
Certificate issued
Feb 9, 2026
Last FAA action
Feb 9, 2026
Registration expires
Feb 28, 2033
Mode S code (hex)
A4B1EE
Aircraft category
Light jet
Weight class
Over 20,000lbs

From FAA registry data as of October 2026. Check the FAA registry for the current record.

OWNERSHIP

Registered owner

Lear 401 LLC

LLC · Fayetteville, AR, US

ESTIMATED VALUE

What N401SF might be worth

No type-level range

The build year is not established for this registration, so Radar cannot calculate an age-based value range or depreciation forecast. Total time, condition, equipment and the completeness of the logbooks set what one is worth.

Open the aircraft value tool

EQUIPMENT AND HISTORY

As reported in public sources

Avionics
Honeywell Primus 1000 (standard on the type)
Cabin
The published type cabin is 59 inches high and 61 inches wide.

Listings and registries are not the logbooks. A pre-buy confirms equipment, program status and damage history from the records themselves.

RESEARCH NOTES

About N401SF

Compiled with AI assistance from the public sources listed below, October 2026. Not checked against the aircraft's logbooks.

Overview

N401SF is a Learjet 45, serial number 247. The FAA record names Lear 401 LLC as the registrant. The registration identifies this airframe. Published figures describe the aircraft type and do not establish this aircraft's installed equipment.

The type

The aircraft is classified as a light jet, with type designator LJ45. Published engine figures for the type are 2 Honeywell TFE731-20 series engines, each rated at 3,500 lbf. These figures do not confirm the engines currently installed in this airframe. The published type cabin is 59 inches high and 61 inches wide. The type's standard flight deck is Honeywell Primus 1000. The published ceiling is 51,000 feet. Actual performance depends on configuration and operating conditions.

Registry facts

The FAA lists the make as LEARJET INC and the model as 45. Its certificate of registration was issued on February 9, 2026.

SOURCES

Where this page comes from

Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled October 2026. Values come from Radar’s aircraft value model. Owners and operators can ask for a correction or removal.

BUYING, SELLING OR FINANCING

What to check before a deal