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Illustration of a Gulfstream IV. Not a photo of N403TB.
Illustration of the Gulfstream IV, not a photo of N403TB. Common G-IV exterior reference. This does not establish an SP conversion, installed engine, avionics or cabin completion. Cabin illustrates one documented twelve-seat example, not the installed completion of this aircraft.

N403TB 1992 Gulfstream IV (certified family)

Serial number 1191. Registered to 403TB LLC, Dover, DE, US.

  • 1992Built
Gulfstream IV (certified family): specs, US fleet and every tail number

INSIDE

The Gulfstream IV twelve-seat cabin.

Illustrations of a representative Gulfstream IV twelve-seat cabin, not N403TB’s. Every aircraft’s completion differs. Common G-IV exterior reference. This does not establish an SP conversion, installed engine, avionics or cabin completion. Cabin illustrates one documented twelve-seat example, not the installed completion of this aircraft. Explore the Gulfstream IV (certified family) interior and layout. Gulfstream IV (certified family) interior: cabin size and seat map.

Gulfstream IV twelve-seat cabin illustration. Actual layout and equipment vary; not a photograph of this aircraft.
A representative Gulfstream IV twelve-seat cabin.
Top-down view of a Gulfstream IV twelve-seat cabin. Representative Gulfstream IV twelve-seat example: two four-chair clubs and an aft four-place conference group opposite a credenza, with aft galley and lavatory. Crew is outside the passenger count. Actual layout and equipment vary.
Representative Gulfstream IV twelve-seat example: two four-chair clubs and an aft four-place conference group opposite a credenza, with aft galley and lavatory. Crew is outside the passenger count. Actual layout and equipment vary.

ROUGH RANGE

What N403TB might be worth, and where it’s heading.

A rough range: Radar's value model doesn't cover the Gulfstream IV (certified family) on its own yet. From Radar's listing-based estimates for business jets of similar engine thrust and age. The Gulfstream G450 curve gives the shape of the forecast, and the range is widened to match. Not an appraisal.

N403TB · On program · rough range

$4.3M

$2.9M$6.5M
In 2031
$2.9M
Value kept
68%
Per year
−7.3%
Program effect
$286K
Confidence
Low

5-year projection

The Gulfstream G450 curve, scaled to a rough range for this Gulfstream IV (certified family)

$2M$3.3M$4.6M$5.9MNow20272028202920302031On program $2.9MOff program $2.6M
Engine program
Horizon
Open the aircraft value tool

SPECIFICATIONS

Gulfstream IV (certified family) specs

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

Full Gulfstream IV (certified family) specs, range and cabin

Model
Gulfstream IV (certified family)
Year
1992
Serial number
1191
Engines
2 × Rolls-Royce Tay 611-8 (TAY 611SER)
Thrust
13,850 lbf each
ICAO type
GLF4

THE AIRCRAFT’S LIFE

N403TB on the registry.

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

  1. Registry record

    Airworthiness date on the current FAA record (standard category).

    FAA registry
  2. 403TB LLC

    Certificate of registration issued as N403TB.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N403TB
Status
Current as of October 2026
Certificate issued
Apr 17, 2026
Airworthiness date
Apr 23, 1992
Last FAA action
Apr 17, 2026
Registration expires
Apr 30, 2033
Mode S code (hex)
A4B971
Aircraft category
Large-cabin 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

403TB LLC

LLC · Dover, DE, US

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

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