The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 2026

Lycoming GO-435-C2

2 aircraft on the U.S. register carry a Lycoming GO-435-C2 engine, rated at about 260 horsepower. The Grumman G-44 is the model most often fitted with it (1 aircraft).

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Lycoming GO-435-C2. FAA spelling: GO-435-C2.

Fitted to model families

Grumman G-441Staudacher Hydroplanes Inc S300X1

Grumman G-44 · Staudacher Hydroplanes Inc S300X

Where they are owner's state

Alaska1

Kind of aircraft

Piston twins1 (50%)Piston singles1 (50%)

When the aircraft were built by decade

0001111940

What the FAA has certified, ordered and been told about the Lycoming GO-435-C2 the component layer

The FAA has issued 2 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 1 failure report with the FAA since 1995, 1 of them in the last ten years.

FAA orders 2 airworthiness directives · newest first

2003-08-142003-14-03 · Rotary fuel pumps · engine
1998-09-2898-18-12 · Fuel Pump · engine

Failure reports 1 since · what operators and shops told the FAA

00011199

Parts most often reported as the reports name them

Blade1

Latest reports

1999-08-12Blade: cracked

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Airworthiness

These connections as data: /graph/engine/lycoming-go-435-c2.json · about the eFlight graph.

Aircraft newest certificates first · 2

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N798TL Staudacher Hydroplanes Inc
S300X
Fixed-wing, single engine
Experimental 2026-06-20 ValidFAA registration status code V: Valid registration. All codes
N80BN Grumman
G-44A
Fixed-wing, multi-engine 20Right LLC
Chugiak, Alaska
Standard 2024-07-11 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.