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

Lycoming TIO-540-F2BD

4 aircraft on the U.S. register carry a Lycoming TIO-540-F2BD engine, rated at about 325 horsepower. The Piper PA-31 Navajo and Chieftain is the model most often fitted with it (4 aircraft). The aircraft carrying it were built between 1976 and 1977.

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 TIO-540-F2BD. FAA spelling: TIO-540-F2BD.

Fitted to model families

Piper PA-31 Navajo and Chieftain4

Piper PA-31 Navajo and Chieftain

Where they are owner's state

South Dakota1Kentucky1Georgia1Colorado1

Kind of aircraft

Piston twins4 (100%)

When the aircraft were built by decade

0122331970

What the FAA has certified, ordered and been told about the Lycoming TIO-540-F2BD the component layer

The design is held under 1 type certificate (E14EA, held by Lycoming Engines). The FAA has issued 33 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 38 failure reports with the FAA since 1995, 8 of them in the last ten years.

FAA orders 33 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2012-10-242012-19-01 · Crankshafts · engine
2012-02-242012-03-06 · Fuel servo diaphragm · engine
2012-01-252011-26-04 · Externally mounted fuel injector fuel lines · engine

All orders naming the Lycoming TIO-540-F2BD

Failure reports 38 since · what operators and shops told the FAA

02457950006216

Parts most often reported as the reports name them

Engine3Turbocharger3Camshaft2Control Cable2Line2Bearing1Case1Coupling Clamp1Downlock1Exhaust Duct1

Latest reports

2016-12-22Points: closed
2016-09-22Engine: making metal
2009-03-16Powerpack: mismanufactured
2009-03-16Screw: overtorqued
2009-03-09Servo Control: damaged

Certificates and bulletins

E14EAType certificate held by Lycoming Engines · 40 models listed · revised May 24, 2012

Safety bulletins 7 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2011-03-31NE-08-26R3 · Magneto/Distributor
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

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
Biggest operators
Airworthiness

These connections as data: /graph/engine/lycoming-tio-540-f2bd.json · about the eFlight graph.

Aircraft newest certificates first · 4

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N271AS Piper
PA-31-325
Fixed-wing, multi-engine Skattum LLC
Sioux Falls, South Dakota
Standard 2026-05-18 ValidFAA registration status code V: Valid registration. All codes
N74LK Piper
PA-31-325
Fixed-wing, multi-engine Alexander 3 Aviation LLC
Rincon, Georgia
Standard 2024-03-14 ValidFAA registration status code V: Valid registration. All codes
N325FJ Piper
PA-31-325
Fixed-wing, multi-engine Individual owner
Kentucky
Standard 2021-04-08 ValidFAA registration status code V: Valid registration. All codes
N27282 Piper
PA-31-325
Fixed-wing, multi-engine Sanborn Map Company INC
Colorado Springs, Colorado
Standard 2021-01-16 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.