N421GG V

This aircraft — FAA registration facts

N421GG is a 1974 Cessna 421B (serial 421B0848), registered to Scientific Flight Corp (corporation) in Shorewood, IL. Its FAA registration is recorded as v and expires January 2030; the airworthiness certificate dates from December 1974 (51 years ago). It carries 2 Cont Motor GTSIO-520-C engines rated at 340 hp each (680 hp total), the engine on 63% of registered Cessna 421Bs. Its Mode-S transponder broadcasts the ICAO 24-bit address A4FFF3. It is one of 224 Cessna 421B aircraft on the FAA registry.

Registered owner

Scientific Flight Corp

Owner type

Corporation

Based in

Shorewood, IL

Serial number

421B0848

Year built

1974 · 52 yrs old

Airworthiness class

Standard – Normal

FAA status

V

Mode-S / ICAO24

A4FFF3 · 51177763 octal

Certificate issued

Jan 18, 2017

Airworthiness date

Dec 19, 1974

Last FAA activity

Sep 30, 2023

Registration expires

Jan 31, 2030

FAA region

Central

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

Engine on this aircraft

Engine

Cont Motor GTSIO-520-C

Engine type

Reciprocating (Piston)

Rated power

340 hp × 2 (680 hp total)

Power per seat

85 hp

FAA engine code

17035

134 of the 214 registered Cessna 421B carry this engine (63%), across 13 engine variants on the type.

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

Runway requirement (estimate)

A Cessna 421B needs roughly 4,500 ft of runway for takeoff at sea level (takeoff distance ~3,900 ft plus a 15% safety margin). Check it against a destination airport →

Planning estimate for takeoff only — excludes landing distance, wind, density altitude, and contamination. Verify against the aircraft's POH/AFM.

Community facts about N421GG

Reported by pilots, owners and enthusiasts — community-reported and admin-checked before they publish. Always verify anything important against the aircraft's records.