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N637AKRobinson Helicopter R44 II · 2004

StandardLycoming IO 540 SERDover, DE

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N637AK is a 2004 Robinson Helicopter R44 II. It is a rotorcraft with 4 seats, powered by a Lycoming IO 540 SER rated at 260 horsepower. The registration is active, with the registrant based in Dover, DE. Its standard airworthiness certificate was issued in Oct 2004. It has been registered to its current owner since Apr 2024.

22 years old
No NTSB events on record

More like this:Aircraft in Delaware Standard

2024

FAA record · Apr 2024 · Registration

Registered to current owner

Registered to R44 Leasing LLC. Registrant based in Dover, DE.

2004

FAA record · Oct 2004 · Airworthiness

Airworthiness certificate issued — Standard

Manufacturer: Robinson Helicopter. Model R44 II. Serial 10523.

That's everything on file so far — TailWiki checks the FAA registry daily and adds new entries as N637AK's record changes.

Aircraft

ManufacturerRobinson Helicopter

ModelR44 II

Year2004

CategoryStandard

TypeRotorcraft

Serial10523

EngineLycoming IO 540 SER

Horsepower260

Seats4

BasedDover, DE

RegistrantR44 Leasing LLC

Safety record

No NTSB accidents or incidents on record

Checked against the public NTSB aviation database.

Registration history

2024 — present

R44 Leasing LLC · Dover, DE

Oct 2004

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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