N18S 2015 Gulfstream G550
- 2015Built
- 20Seats
- 6,750 nmRange
- 459 ktCruise
- 51,000 ftCeiling
INSIDE
The Gulfstream G550 cabin.
Illustrations of a typical Gulfstream G550 cabin, not N18S’s. Every aircraft’s completion differs.
RADAR ESTIMATE
What N18S is worth, and where it’s heading.
Radar's aircraft value model for a 2015 Gulfstream G550, starting from typical time. Move the hours, the engine program and the horizon to see what each is worth. An estimate, not an appraisal: the logbooks, damage history and programs on N18S move the number.
2015 G550 · 3,950 hrs · On program
$25.5M
- In 2031
- $20.2M
- Value kept
- 79%
- Per year
- −4.6%
- Program effect
- $1.8M
- Confidence
- Medium
5-year projection
As of today, on and off an engine program, at 360 hrs a year
RECENT SALES
What G550s have sold for.
Source-reported sale prices for the type, the same market evidence the Radar value model calibrates on. Each sale is a different aircraft with its own hours, programs and records.
- 2014 G550 Sold Jul 10, 2026 $22M
- 2006 G550 Sold Jul 6, 2026 · on program $13M
- 2012 G550 Sold Jul 6, 2026 · on program $25.9M
- 2015 G550 Sold Jun 17, 2026 · on program $24.5M
- 2008 G550 Sold May 1, 2026 · on program $17M
- 2015 G550 Sold Apr 6, 2026 · on program $28M
SPECIFICATIONS
Gulfstream G550 specs
Published figures for the type, from public sources. A given aircraft varies with its completion, weight and mods.
- Model
- Gulfstream G550
- Year
- 2015
- Serial number
- 5531
- Engines
- 2 × Rolls-Royce BR710 C4-11
- Thrust
- 15,385 lbf each
- Seats
- Up to 20
- Range
- 6,750 nm
- Cruise
- 459 ktas
- Published Mach
- 0.8
- Ceiling
- 51,000 ft
- Fuel capacity
- 6,220 US gal
- ICAO type
- GLF5
THE AIRCRAFT’S LIFE
N18S, from delivery to today.
Registration events from FAA records, compiled November 2025. Maintenance, damage and component history live in the logbooks, not the registry.
-
Private owner
FAA registry -
5531 LLC
FAA certificate issue date for registration to 5531 LLC.
FAA registry -
5531 LLC
Latest FAA registration action recorded for 5531 LLC (Seattle, WA).
FAA registry
FAA REGISTRATION
Registration details
- Registration
- N18S
- Status
- Current as of November 2025
- Certificate issued
- Apr 5, 2021
- Airworthiness date
- Oct 20, 2015
- Last FAA action
- May 5, 2023
- Registration expires
- Apr 30, 2028
- Mode S code (hex)
- A13FE3
- Aircraft category
- Fixed-wing multi-engine
- Weight class
- Over 20,000lbs
From FAA registry data as of November 2025. Check the FAA registry for the current record.
OWNERSHIP
Registered owner
5531 LLC
EQUIPMENT AND HISTORY
As reported in public sources
- Avionics
- Gulfstream PlaneView (Honeywell Primus Epic-based)
- Cabin
- Registered for 20 seats (FAA). Typical large-cabin executive layouts seat 14-20 depending on fit.
- Interior
- Long-cabin executive interior options include forward and aft lavatories, forward galley and multiple living/meeting zones; panoramic oval windows and significant baggage volume are standard on the G550 family.
Listings and registries are not the logbooks. A pre-buy confirms equipment, program status and damage history from the records themselves.
RESEARCH NOTES
About N18S
Compiled with AI assistance from the public sources listed below, November 2025. Not checked against the aircraft's logbooks.
Overview
This airframe, registered as N18S, is a Gulfstream GV-SP (G550) built in 2015 with manufacturer serial number 5531. The airframe is listed in corporate ownership under 5531 LLC, an LLC based in Seattle, WA, US, and carries a United States registration. Registered to 5531 LLC of Seattle, Washington, the aircraft’s public record indicates corporate ownership rather than individual or airline operation. There are no additional published ownership transfers or notable registry actions beyond its current LLC ownership in the supplied data. Condition and valuation highlights are not published in the provided dataset.
Operations & Cabin
The aircraft is registered with the FAA for 20 seats, matching the maximum listed seating. Typical large-cabin executive layouts for this model seat between 14-20 passengers depending on interior fit, so the registration reflects a high-capacity executive or corporate configuration for this specific airframe. Avionics are fitted with Gulfstream PlaneView, the Honeywell Primus Epic-based suite, supporting long-range, high-altitude IFR operations and advanced flight management for demanding corporate missions. With a 6,750 nm range and a 51,000 ft service ceiling, this particular G550 is typically employed on transcontinental and intercontinental point-to-point flights, frequently operating out of corporate bases consistent with its Seattle LLC ownership. No unique amenities or special maintenance actions specific to this serial are published in the supplied data.
Model & Market Context
The Gulfstream GV-SP (G550) sits in the large-cabin, long-range business jet category, prized for intercontinental capability, high cruise speed and high-altitude performance, attributes reflected in this airframe’s 459 kts cruise and 6,750 nm range. Competitors in the same mission segment include other ultra-long-range corporate jets; buyer and charter demand typically favors airframes with comprehensive avionics like PlaneView and well-documented maintenance histories. For resale and maintenance considerations, the BR710 engines and Gulfstream systems on this serial require OEM-recommended shop visits and documented tracking to preserve value; no specific maintenance records were provided for this aircraft.
SOURCES
Where this page comes from
Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled November 2025. 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
- Pre-buy records reviewWhat to read in the logbooks before you sign
- Aircraft title searchLiens, registrations and the chain of title
- Aircraft valuationHow records, time and programs move the price
- Aircraft maintenance recordsWhat a complete records package holds
Own or manage N18S? Put its logbooks in Radar.
Radar reads every logbook page, typed or handwritten, and builds one searchable record for the aircraft: times, inspections, ADs and components, each tied to the page it came from.
N18S is not a Radar customer record. This page is built from public sources as of November 2025. Owners and operators can ask for a correction or removal.