Registry / Ryan Aeronautical / ST-A SPECIAL / N18921

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N18921 V

Ryan Aeronautical ST-A SPECIAL · Las Vegas, NV

This aircraft — FAA registration facts

N18921 is a Ryan Aeronautical ST-A SPECIAL (serial 339), registered to Sorenson Fred (individual) in Las Vegas, NV. Its FAA registration is recorded as v and expires October 2031; the airworthiness certificate dates from May 1956 (70 years ago). It carries a Menasco SUP PIRT D4B engine rated at 160 hp, the engine on 13% of registered Ryan Aeronautical ST-A SPECIALs. Its Mode-S transponder broadcasts the ICAO 24-bit address A164D3. It is one of 9 Ryan Aeronautical ST-A SPECIAL aircraft on the FAA registry. Sorenson Fred holds 2 aircraft on the registry.

Registered owner
Sorenson Fred
Owner type
Individual
Based in
Las Vegas, NV
Serial number
339
Airworthiness class
1
FAA status
V
Mode-S / ICAO24
A164D3 · 50262323 octal
Certificate issued
Oct 4, 2024
Airworthiness date
May 4, 1956
Last FAA activity
Oct 4, 2024
Registration expires
Oct 31, 2031
FAA region
4

Source: FAA aircraft registry (public record). Community reviews and photos below.

Engine on this aircraft

Engine
Menasco SUP PIRT D4B
Engine type
Reciprocating (Piston)
Rated power
160 hp
Power per seat
80 hp
FAA engine code
43506

1 of the 8 registered Ryan Aeronautical ST-A SPECIAL carry this engine (13%), across 3 engine variants on the type.

Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.

Community facts about N18921

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Flight history & live tracking

ICAO24: a164d3
No flight data on file yet for N18921.
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Aircraft Type — ACFTREF 7830404

Ryan Aeronautical ST-A SPECIAL
Engines: 1
Type: piston
Seats: 2
Cruise: 80 KTAS
Category: Standard

Engine — CODE 43506

Manufacturer: Menasco
Model: SUP PIRT D4B
Type: Reciprocating (Piston)
Horsepower: 160 HP

FAA Registration Record

N-Number: N18921
Serial Number: 339
Year Manufactured: —
ACFTREF Code: 7830404
Engine Code: 43506
Status: V (V)
Certification: 1
Type Aircraft: Fixed Wing Single Engine (4)
Type Engine: Reciprocating (Piston) (1)
Source: master

Documents & resources

Commonly available reference sources for the Ryan Aeronautical ST-A SPECIAL. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Ryan Aeronautical ST-A SPECIAL model overview, reviews & photos →

These are commonly available reference sources. FerryFlight Hub does not provide sample or generated documents on this page.

FerryFlight Hub is independent and not affiliated with, endorsed by, or sponsored by any aircraft manufacturer, the FAA, or any document publisher. References are NOT for operational, navigational, or flight-planning use — always rely on the current, FAA-approved documentation for the specific aircraft. We link to official or publicly available sources and do not host or redistribute copyrighted material. Provided "as is," without warranty of any kind as to accuracy, completeness, or currency.

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Transponder / ADS-B

Mode S (octal): 50262323
ICAO 24-bit (hex): A164D3

Registrant

Sorenson Fred
Individual
View all 2 aircraft registered to this owner →
2800 Sterling Cove Dr
Las Vegas, NV, 891287729
FAA Region: 4

Key Dates

Certificate Issued Oct 4, 2024
Airworthiness May 4, 1956
Expiration Oct 31, 2031
Last Activity Oct 4, 2024
Data as of Sep 7, 2026

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