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The Learjet 31 (ICAO type LJ31) is an aircraft of United States origin, certificated in the Transport Aircraft category. It has a maximum take-off weight of 7,400 kg. It offers a maximum range of 1,290 nm, a cruise speed of 450 knots, a service ceiling of 51,000 ft and seating for up to 10 across its variants.

Learjet 31

Learjet 31
LJ31
Photo via Wikipedia: Learjet 31
Year
—
Owner
—
Last seen
—
MTOW
7,400 kg
Range
1,290 nm
Seats
10
31
Learjet · 31
Model overview

Fleet & certification

Built
225
Active
224
Origin
United States
Certifying authorities
FAA
Market

Comparable listings

N251TS · 1975 · 6,731 hrs
$365,000
45-264 ·
$1,500,000
9H-MSS · 2001 · 8,276 hrs
$2,200,000
N700MB · 2008 · 1,798 hrs
$2,950,000
D-AFAU · 2000 · 10,026 hrs
$10,950,000
Marketplace

27 for sale right now

Variants

Per-variant specifications

VariantEngineMTOWRangeCruisePax
31
31
—7,400 kg1,290 nm450 kt10
31A
31A
—7,400 kg1,290 nm450 kt10
Type certification

The FAA paperwork

TCDS A10CE · Rev 62 · issued 2009-11-20

Category
Transport Aircraft
MTOW
7,031 kg
MZFW
5,897 kg
Seats
2 crew · 8 passengers
Ceiling
51,000 ft
Approved fuelSee NOTE 5(b) for Model 31. See NOTE 5(c) for Model 31A.
Engine

Two Honeywell TFE-731-2-3B, P/N 3073610-1 (w/o fuel heaters) Optional - Two Honeywell TFE-731-2-3B, P/N 3073610-3 (with fuel heaters)

Safety & ops history

Where to look next

Detailed safety & ops history coming soon — view this model's FAA Airworthiness Directives at FAA.gov.

Learjet 31 market & fleet intelligence

Registry, flight-tracking and market data on the Learjet 31 fleet — updated daily.

Fleet age

29 yearsmedian age

Of the 133 registered Learjet 31 with a known build year (59% of the 225 we track), the median age is 29 years.

Registration activity

7changed registration in 12 months

7 of the 225 registered Learjet 31 we track changed registration in the last 12 months (3% of the fleet), across 7 registration events. Registration changes include ownership transfers, re-registrations and address updates — not all are sales.

Fleet activity — last 90 days
Aircraft seen flying
19
Tracked flights
46
Tracked flight hours
74
Share of fleet flying
8%

19 Learjet 31 were tracked flying in the last 90 days (8% of the registered fleet), across 46 flights. Sprinkle flight tracking began May 2026; coverage is ADS-B-derived and not exhaustive.

For sale now

27Learjet 31 listed for sale

$100Kmedian $950K$1.6M

Asking prices from $100K to $1.6M, typically $838K–$1.2M — based on 19 USD asking prices on Sprinkle, not an appraisal.

Browse Learjet 31 for sale →

Learjet 31 manuals & documents

7 documents for the Learjet 31 — Pilot's Operating Handbook · Checklist · Maintenance Manual · Parts Catalog · Service Bulletins · Model Guide. PDFs served from cdn.sprinkle.com.

Overview
Learjet 31A Pilot's Manual

The Learjet 31A Pilot's Manual provides detailed information on the operation and safety features of the aircraft, focusing on doors, exits, and miscellaneous equipment. It includes instructions for cabin door operation, emergency exits, and the use of emergency equipment.

  • The cabin door has an upper and lower portion with a torsion bar system for operation.
  • A red DOOR warning light indicates cabin door security status.
  • Emergency exits include a cabin window and the upper portion of the cabin door.
  • A two-pound Halon 1211 fire extinguisher is accessible to crew members.
  • Life vests are provided at each seat station for emergencies.
  • The drag chute can significantly reduce stopping distance on wet or icy runways.
  • The Monogram toilet is an optional feature with a press-to-flush mechanism.

Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.

Reference only, not for flight. Use the current approved manual for your aircraft. See terms, section 5.

Read the document

Documents are sourced from publicly available references. Sprinkle does not host OEM-restricted materials; if you are a rights-holder and want a document removed, email .

31 — frequently asked
What is the range of the Learjet 31?

The Learjet 31 has a maximum range of 1,290 nautical miles across variants.

How many people can the Learjet 31 carry?

The Learjet 31 seats up to 10 across its variants.

What is the MTOW of the Learjet 31?

The Learjet 31's maximum take-off weight is 7,400 kg.

What is the ICAO type designator for the Learjet 31?

The Learjet 31's ICAO type designator is LJ31.

How many Learjet 31 aircraft are registered worldwide?

Sprinkle tracks 225 registered Learjet 31 airframes worldwide.