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N51UDTextron Aviation 172S · 2017

StandardLycoming IO-360-L2AChicago, IL

Claim this aircraft

N51UD is a 2017 Textron Aviation 172S. It is a fixed-wing single-engine aircraft with 4 seats, powered by a Lycoming IO-360-L2A rated at 180 horsepower. The registration is active, with the registrant based in Chicago, IL. Its standard airworthiness certificate was issued in Oct 2017. It has been registered to its current owner since Nov 2022.

9 years old
No NTSB events on record

More like this:Aircraft in Illinois Standard

2022

FAA record · Nov 2022 · Registration

Registered to current owner

Registered to Alf Ix LLC. Registrant based in Chicago, IL.

2017

FAA record · Oct 2017 · Airworthiness

Airworthiness certificate issued — Standard

Manufacturer: Textron Aviation. Model 172S. Serial 172S12088.

That's everything on file so far — TailWiki checks the FAA registry daily and adds new entries as N51UD's record changes.

More from Alf Ix

FAA record

and 21 more registered to the same entity in IL.

Aircraft

ManufacturerTextron Aviation

Model172S

Year2017

CategoryStandard

TypeFixed-wing single-engine

Serial172S12088

EngineLycoming IO-360-L2A

Horsepower180

Seats4

BasedChicago, IL

RegistrantAlf Ix LLC

Safety record

No NTSB accidents or incidents on record

Checked against the public NTSB aviation database.

Registration history

2022 — present

Alf Ix LLC · Chicago, IL

Oct 2017

Airworthiness certificate issued

Owner locations generalized to city/state for privacy. Ownership lineage grows as TailWiki tracks daily FAA updates.

View earlier registration history

TailWiki has tracked this tail since Aug 2026. The FAA registry is a snapshot, not a history — earlier owners aren't in the public record. TailWiki reconstructs ownership changes by watching daily FAA updates going forward, so this section fills in the longer TailWiki runs.

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