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

Lycoming TIO-540-AJ1A

719 aircraft on the U.S. register carry a Lycoming TIO-540-AJ1A engine, rated at about 310 horsepower. The Cessna T206 Turbo Stationair is the model most often fitted with it (719 aircraft). The aircraft carrying it were built between 1999 and 2026.

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-AJ1A. FAA spelling: TIO-540-AJ1A.

Kind of aircraft

By kind, as a table
aircraftshare
Piston singles719100%

When the aircraft were built by decade

By decade built, as a table
aircraft
19801
19906
2000212
2010264
2020209

What the FAA has certified, ordered and been told about the Lycoming TIO-540-AJ1A the component layer

The design is held under 1 type certificate (E14EA, held by Lycoming Engines). The FAA has issued 23 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 102 failure reports with the FAA since 1995, 27 of them in the last ten years.

FAA orders 23 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2017-08-152017-16-11 · Reciprocating Engine Power Section · engine
2017-06-282017-11-10 · Engine Exhaust System · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2015-07-022015-10-06 · Engine exhaust pipes · engine

All orders naming the Lycoming TIO-540-AJ1A

Failure reports 102 since · what operators and shops told the FAA

0368110005101520126
Failure reports by year, as a table
reports
003
011
022
032
041
051
061
078
089
096
105
113
128
139
144
157
165
1711
182
191
204
215
231
241
251
261

Parts most often reported as the reports name them

Magneto8Pump8Pushrod7Boot4Cylinder4Control Cable3Exhaust Pipe3Line3Alternator2Clamp2
Parts most reported, as a table
reports
Magneto8
Pump8
Pushrod7
Boot4
Cylinder4
Control Cable3
Exhaust Pipe3
Line3
Alternator2
Clamp2

Latest reports

2026-09-30Attach Bracket: cracked
2025-03-18Connecting Rod: damaged
2024-02-22Coupling: loose
2023-06-23Alternator: seized
2021-06-16Line: gouged

Certificates and bulletins

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

Safety bulletins 5 · 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
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft
2008-07-03NE-08-32 · Propeller Governor Set Screw

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-aj1a.json · about the eFlight graph.

Aircraft newest certificates first · 719

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N669DM Cessna
T206H
Fixed-wing, single engine Daniels Tree Service INC
Taylors, South Carolina
Standard 2006-12-14 ValidFAA registration status code V: Valid registration. All codes
N866DM Cessna
T206H
Fixed-wing, single engine Orange County Sheriffs Office
Orlando, Florida
Standard 2006-12-12 ValidFAA registration status code V: Valid registration. All codes
N553HP Cessna
T206H
Fixed-wing, single engine California Highway Patrol
Sacramento, California
Standard 2006-12-08 ValidFAA registration status code V: Valid registration. All codes
N24607 Cessna
T206H
Fixed-wing, single engine Fey Properties LLC
Pleasanton, California
Standard 2003-06-02 ValidFAA registration status code V: Valid registration. All codes
N3543B Cessna
T206H
Fixed-wing, single engine US Department of Homeland Security
Washington, District of Columbia
Standard 2002-07-15 ValidFAA registration status code V: Valid registration. All codes
N206MD Cessna
T206H
Fixed-wing, single engine Auction Aviation INC
Boulder City, Nevada
Standard 2001-06-18 ValidFAA registration status code V: Valid registration. All codes
N1165Y Cessna
T206H
Fixed-wing, single engine Ugly Johns Aircraft LLC
Afton, Oklahoma
Standard ValidFAA registration status code V: Valid registration. All codes
N151ZG Cessna
T206H
Fixed-wing, single engine Individual owner
Oregon
Standard Sale reportedFAA registration status code 7. All codes
N23530 Textron Aviation Inc
T206H
Fixed-wing, single engine Individual owner
Texas
Standard PendingFAA registration status code R: Registration pending. All codes
N24GL Textron Aviation Inc
T206H
Fixed-wing, single engine Textron Aviation INC
Wichita, Kansas
Standard Valid (manufacturer)FAA registration status code M: Valid, assigned to the manufacturer under its dealer certificate. All codes
N50101 Cessna
T206H
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N565DB Cessna
T206H
Fixed-wing, single engine Individual owner
Florida
Standard PendingFAA registration status code R: Registration pending. All codes
N618EA Textron Aviation Inc
T206H
Fixed-wing, single engine Individual owner
Texas
Standard PendingFAA registration status code R: Registration pending. All codes
N6206X Cessna
T206H
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N622WB Textron Aviation Inc
T206H
Fixed-wing, single engine Individual owner
Montana
Standard PendingFAA registration status code R: Registration pending. All codes
N6241Z Cessna
T206H
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N699AW Textron Aviation Inc
T206H
Fixed-wing, single engine Textron Aviation INC
Wichita, Kansas
Standard Valid (manufacturer)FAA registration status code M: Valid, assigned to the manufacturer under its dealer certificate. All codes
N915EA Textron Aviation Inc
T206H
Fixed-wing, single engine Textron Aviation INC
Wichita, Kansas
Standard Valid (manufacturer)FAA registration status code M: Valid, assigned to the manufacturer under its dealer certificate. All codes
N925LD Textron Aviation Inc
T206H
Fixed-wing, single engine Individual owner
Nevada
Standard PendingFAA registration status code R: Registration pending. All codes
Previous Page 8 of 8

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.