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Illustration of a Cessna Citation X. Not a photo of N138SP.
Illustration of the Cessna Citation X, not a photo of N138SP.

N138SP 2000 Cessna Citation X

Serial number 750-0138. Registered to Fixed Gear 2 LLC, Seattle, WA, US.

  • 2000Built
  • 12Seats
  • 3,070 nmRange
  • 525 ktCruise
  • 51,000 ftCeiling

INSIDE

The Cessna Citation X cabin.

Illustrations of a typical Cessna Citation X cabin, not N138SP’s. Every aircraft’s completion differs.

Warm natural light illuminates eight cream leather club seats and walnut trim in the compact, curved Citation X cabin, viewed at eye level looking aft along the narrow dropped aisle toward the lavatory door.
A typical Cessna Citation X cabin.
Top-down view of a Cessna Citation X cabin. Typical 8-passenger layout: two clubs of four, forward galley, aft lavatory and separate baggage hold.
Typical 8-passenger layout: two clubs of four, forward galley, aft lavatory and separate baggage hold.

RADAR ESTIMATE

What N138SP is worth, and where it’s heading.

Radar's value model doesn't cover the Cessna Citation X on its own yet, so this borrows the Bombardier Challenger 300 curve, scales it to N138SP's listing-based estimate and widens the range to match. An estimate, not an appraisal.

N138SP · On program · wider range

$3M

$2.5M$3.5M
In 2031
$2.2M
Value kept
72%
Per year
−6.4%
Program effect
$192K
Confidence
Low

5-year projection

The Bombardier Challenger 300 curve, scaled to this Cessna Citation X

$1.6M$2.1M$2.7M$3.3MNow20272028202920302031On program $2.2MOff program $1.8M
Engine program
Horizon
Open the aircraft value tool

SPECIFICATIONS

Cessna Citation X specs

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

Model
Cessna Citation X
Year
2000
Serial number
750-0138
Engines
2 × AE3007C (Allison/Rolls-Royce AE3007C series)
Thrust
6,442 lbf each
Seats
Up to 12
Range
3,070 nm
Cruise
525 ktas
Published Mach
0.82
Ceiling
51,000 ft
Fuel capacity
1,930 US gal
ICAO type
C750
Exterior
White

THE AIRCRAFT’S LIFE

N138SP, from delivery to today.

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

  1. Mirage Enterprises

    Delivery / initial registration listed to Mirage Enterprises.

    FAA registry
  2. Fixed Gear 2 LLC

    Certificate action / registration recorded to FIXED GEAR 2 LLC (co-owned).

    FAA registry
  3. GTB Aviation II LLC

    GTB AVIATION II LLC listed as a co-owner on FAA-derived registration refresh.

    FAA registry

FAA REGISTRATION

Registration details

Registration
N138SP
Status
Current as of August 2026
Certificate issued
Mar 3, 2022
Airworthiness date
Dec 10, 2000
Last FAA action
Jul 22, 2023
Registration expires
Mar 31, 2029
Mode S code (hex)
A09A87
Aircraft category
Fixed-wing multi engine
Weight class
Over 20,000lbs

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

OWNERSHIP

Registered owner

Fixed Gear 2 LLC

Corporation · Seattle, WA, US

EQUIPMENT AND HISTORY

As reported in public sources

Avionics
Honeywell Primus-era (typical for 2000-series Citation X; may have later upgrades)
Cabin
Typical 8-12 executive layout (double-club seating, forward galley, aft lavatory options)
Interior
Executive leather seating, double-club arrangements common; cabin length and cross-section consistent with Citation X executive fit (exact factory refit/refresh unknown).

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

RESEARCH NOTES

About N138SP

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

Overview

This entry documents the individual airframe N138SP, a Cessna 750 Citation X built in 2000 with serial number 750-0138. The airframe is owned by Fixed Gear 2 LLC, a corporate owner based in Seattle, WA, US, and is registered in the US registry.

Operations & Cabin

The cabin of this airframe typically conforms to an 8-12 executive layout with double-club seating, a forward galley and options for an aft lavatory, and this specific aircraft is fitted to accommodate 12 seats in line with that executive configuration. Avionics for the airframe are consistent with the Honeywell Primus-era fit common to 2000-series Citation X examples, though later avionics upgrades for individual aircraft are possible and not specifically recorded here. Operating from a corporate base in Seattle, WA, the aircraft’s performance, long range and high cruise speed, suits transcontinental business missions and higher-altitude, high-speed point-to-point executive transport. Maintenance considerations for this serial include the AE3007C engine family support and typical Citation X airframe systems, with corporate ownership implying managed maintenance programs rather than an airline-style regime.

Model & Market Context

The Cessna 750 Citation X occupies a performance niche as a high-speed, long-range executive business jet within Textron Aviation’s lineup, delivering transcontinental capability with a service ceiling of 51,000 ft and cruise near 525 kts. Competing models in the market historically include other ultra-long-range or high-speed large-cabin business jets; buyer demand for early 2000s Citation X airframes is influenced by airframe condition, engine cycles on the AE3007C engines, and available retrofit/avionics upgrade paths.

MOVEMENTS

Last reported flights

DateFromTo
KTRM Jacqueline Cochran Regional Airport KBFI King County International Airport / Boeing Field
Not reported KBFI King County International Airport / Boeing Field
Not reported KBFI King County International Airport / Boeing Field
Not reported KPAE Snohomish County / Paine Field

Public ADS-B and spotter reports up to August 2026. Not a live track.

SOURCES

Where this page comes from

Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled August 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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