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N421GGCessna 421B · 1974

StandardCont Motor GTSIO-520-CShorewood, IL

Claim this aircraft

N421GG is a 1974 Cessna 421B. It is a fixed-wing multi-engine aircraft with 8 seats, powered by a Cont Motor GTSIO-520-C rated at 340 horsepower. The registration is active, with the registrant based in Shorewood, IL. Its standard airworthiness certificate was issued in Dec 1974. It has been registered to its current owner since Jan 2017.

52 years old
1 of 242 Cessna 421B
No NTSB events on record

More like this:Cessna 421B Aircraft in Illinois Standard

2017

FAA record · Jan 2017 · Registration

Registered to current owner

Registered to Scientific Flight Corp. Registrant based in Shorewood, IL.

1974

FAA record · Dec 1974 · Airworthiness

Airworthiness certificate issued — Standard

Manufacturer: Cessna. Model 421B. Serial 421B0848.

That's everything on file so far — TailWiki checks the FAA registry daily and adds new entries as N421GG's record changes.

Aircraft

ManufacturerCessna

Model421B

Year1974

CategoryStandard

TypeFixed-wing multi-engine

Serial421B0848

EngineCont Motor GTSIO-520-C

Horsepower340

Seats8

BasedShorewood, IL

RegistrantScientific Flight Corp

Safety record

No NTSB accidents or incidents on record

Checked against the public NTSB aviation database.

Registration history

2017 — present

Scientific Flight Corp · Shorewood, IL

Dec 1974

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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