The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming TVO-435-F1A

1 aircraft on the U.S. register carry a Lycoming TVO-435-F1A engine, rated at about 280 horsepower. The Bell 47 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 TVO-435-F1A. FAA spelling: TVO-435-F1A.

Fitted to model families

Bell 471

Bell 47

Where they are owner's state

Oregon1

Kind of aircraft

Helicopters1 (100%)

When the aircraft were built by decade

0001111970

What the FAA has certified, ordered and been told about the Lycoming TVO-435-F1A the component layer

The design is held under 1 type certificate (1E13, held by Lycoming Engines). The FAA has issued 9 airworthiness directives (orders that owners must comply with) that name this engine series.

FAA orders 9 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2012-03-272012-03-07 · Carburetor · engine
2010-04-192010-07-08 · Turbochargers · engine
2004-06-252004-10-14 · Crankshaft gear · engine

All orders naming the Lycoming TVO-435-F1A

Certificates and bulletins

1E13Type certificate held by Lycoming Engines · 11 models listed · revised November 4, 2010

Safety bulletins 2 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs

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
  • Bell 47 1 with this engine series
Where they are
Airworthiness

These connections as data: /graph/engine/lycoming-tvo-435-f1a.json · about the eFlight graph.

Aircraft newest certificates first · 1

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N2985W Bell
47G3B2A
Rotorcraft Wildhorse Helicopter Company INC
Pendleton, Oregon
Restricted 1996-10-03 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 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.