Skip to content
Illustration of a Gulfstream IV-SP. Not a photo of N551CB.
Illustration of the Gulfstream IV-SP, not a photo of N551CB.

N551CB 2001 Gulfstream IV-SP

Serial number 1449. Registered to Modern Industrial Services Inc, Beaumont, TX, US.

  • 2001Built
Gulfstream IV: specs, US fleet and every tail number

INSIDE

The Gulfstream IV-SP cabin.

Illustrations of a representative Gulfstream IV-SP cabin, not N551CB’s. Every aircraft’s completion differs. View the Gulfstream IV model page. Compare with the Gulfstream IV interior.

An eye-level view looking aft through a Gulfstream IV stand-up cabin with cream leather club seats, a three-place divan, an aft conference area, wood veneer cabinetry and six large oval windows on each side in warm natural light.
A representative Gulfstream IV-SP cabin.
Top-down view of a Gulfstream IV-SP cabin. Representative Gulfstream IV-SP cabin cutaway. Seating and installed interiors vary by aircraft.
Representative Gulfstream IV-SP cabin cutaway. Seating and installed interiors vary by aircraft.

ROUGH RANGE

What N551CB might be worth, and where it’s heading.

A rough range: Radar's value model doesn't cover the Gulfstream IV-SP on its own yet. From Radar's listing-based estimates for business jets of similar engine thrust and age, set to the level of the 7 Gulfstream IV-SP estimates on Radar. The Gulfstream G450 curve gives the shape of the forecast, and the range is widened to match. Not an appraisal.

N551CB · On program · rough range

$6.3M

$4.3M$9.1M
In 2031
$4.3M
Value kept
68%
Per year
−7.3%
Program effect
$419K
Confidence
Low

5-year projection

The Gulfstream G450 curve, scaled to a rough range for this Gulfstream IV-SP

$3M$4.8M$6.6M$8.4MNow20272028202920302031On program $4.3MOff program $3.8M
Engine program
Horizon
Open the aircraft value tool

SPECIFICATIONS

Gulfstream IV-SP specs

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

Full Gulfstream IV specs, range and cabin

Model
Gulfstream IV-SP
Year
2001
Serial number
1449
Engines
2 × Rolls-Royc TAY 611SER
ICAO type
GLF4

THE AIRCRAFT’S LIFE

N551CB, from delivery to today.

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. Registry record

    Earlier use of the number: N551CB was assigned to another aircraft, a 2006 Schweizer 269C-1. That registration was cancelled on this date.

    FAA registry
  3. Modern Industrial Services Inc

    Certificate of registration issued as N551CB.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N551CB
Status
Current as of October 2026
Certificate issued
Oct 25, 2018
Airworthiness date
May 16, 2001
Last FAA action
Jun 16, 2023
Registration expires
Oct 31, 2028
Mode S code (hex)
A70356
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

Modern Industrial Services Inc

Corporation · Beaumont, TX, 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

What to check before a deal