Lycoming IO-540-AE1A5
1,037 aircraft on the U.S. register carry a Lycoming IO-540-AE1A5 engine, rated at about 260 horsepower. The Robinson R44 is the model most often fitted with it (1,037 aircraft). The aircraft carrying it were built between 2003 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 IO-540-AE1A5. FAA spelling: IO-540-AE1A5.
Where they are owner's state
Texas160Delaware95Alaska73Florida68California67Montana44Oklahoma27Illinois26Arizona26Utah23
Kind of aircraft
Helicopters1,037 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming IO-540-AE1A5 the component layer
The design is held under 1 type certificate (1E4, held by Lycoming Engines). The FAA has issued 21 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 924 failure reports with the FAA since 1995, 249 of them in the last ten years.
FAA orders 21 airworthiness directives · newest first
2026-09-142026-17-10 · Reciprocating Engine Cylinder Section · engine
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
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2012-10-242012-19-01 · Crankshafts · engine
Failure reports 924 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Pump115Tachometer62Servo55Starter51Magneto42Starter Gen40Bearing32Controller24Reservoir24Actuator22
Latest reports
2026-06-22Pump: inoperative
2025-12-05Cylinder: scored
2024-03-01Boot: cracked
2023-10-19Warning Unit: defective
2023-10-17Muffler: distorted
Certificates and bulletins
1E4Type certificate held by Lycoming Engines · 81 models listed · revised February 28, 2018
Safety bulletins 6 · 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
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
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
- Robinson R44 1,037 with this engine series
Where they are
- Texas 160 of these aircraft
- Delaware 95 of these aircraft
- Alaska 73 of these aircraft
- Florida 68 of these aircraft
- California 67 of these aircraft
Biggest operators
- Spitzer Helicopter LLC 17 of these aircraft
- Southern Utah University 15 of these aircraft
- Sky Helicopters INC 12 of these aircraft
- Aircraft Guaranty CORP Trustee 11 of these aircraft
- Sky Solutions LLC 9 of these aircraft
Airworthiness
- FAA orders naming the Lycoming IO-540-AE1A5 21 airworthiness directives
- Failure reports on the Lycoming IO-540-AE1A5 924 reports since 1995
Analytics
These connections as data: /graph/engine/lycoming-io-540-ae1a5.json · about the eFlight graph.
Aircraft newest certificates first · 1,037
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N58UH | Robinson Helicopter R44 II |
Helicopter | Frontier Helicopter Service LLC Anchorage, Alaska |
Standard | 2022-04-14 | ValidFAA registration status code V: Valid registration. All codes |
| N31136 | Robinson Helicopter R44 II |
Helicopter | Midwestern Helicopter LLC Kenosha, Wisconsin |
Standard | 2022-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N147TC | Robinson Helicopter R44 II |
Helicopter | Sundance Aero LLC Mertzon, Texas |
Standard | 2022-04-07 | ValidFAA registration status code V: Valid registration. All codes |
| N4034H | Robinson Helicopter R44 II |
Helicopter | Bay Lux Ventures LLC Tampa, Florida |
Standard | 2022-03-30 | ValidFAA registration status code V: Valid registration. All codes |
| N175KM | Robinson Helicopter R44 II |
Helicopter | November Alpha LLC Dover, Delaware |
Standard | 2022-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N7054L | Robinson Helicopter R44 II |
Helicopter | Individual owner California |
Standard | 2022-03-14 | ValidFAA registration status code V: Valid registration. All codes |
| N441JP | Robinson Helicopter R44 II |
Helicopter | Jpm Flying Service LLC Marine, Illinois |
Standard | 2022-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N99605 | Robinson Helicopter R44 II |
Helicopter | Alpine Air Alaska LLC Girdwood, Alaska |
Standard | 2022-03-11 | ValidFAA registration status code V: Valid registration. All codes |
| N704T | Robinson Helicopter R44 II |
Helicopter | C & J Leasing LLC Wasilla, Alaska |
Standard | 2022-03-01 | ValidFAA registration status code V: Valid registration. All codes |
| N442BD | Robinson Helicopter R44 II |
Helicopter | Hilton Head Helicopters LLC Hilton Head Island, South Carolina |
Standard | 2022-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N555VU | Robinson Helicopter R44 II |
Helicopter | Out On A Limb Tree Service LLC Arlington, Washington |
Standard | 2022-02-19 | ValidFAA registration status code V: Valid registration. All codes |
| N825B | Robinson Helicopter R44 II |
Helicopter | N825B LLC Port Arthur, Texas |
Standard | 2022-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N44PA | Robinson Helicopter R44 II |
Helicopter | N44Pa LLC Boca Raton, Florida |
Standard | 2022-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N133AA | Robinson Helicopter R44 II |
Helicopter | 133Aa LLC Muskogee, Oklahoma |
Standard | 2022-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N912AG | Robinson Helicopter R44 II |
Helicopter | P3 Aviation Services LLC Wilmington, Delaware |
Standard | 2022-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N523CT | Robinson Helicopter R44 II |
Helicopter | N523Ct LLC Douglasville, Georgia |
Standard | 2022-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N42FT | Robinson Helicopter R44 II |
Helicopter | Ventana Blue LLC Hyattville, Wyoming |
Standard | 2022-01-24 | ValidFAA registration status code V: Valid registration. All codes |
| N144SG | Robinson Helicopter R44 II |
Helicopter | Holt Helicopters INC Uvalde, Texas |
Standard | 2022-01-19 | ValidFAA registration status code V: Valid registration. All codes |
| N443DR | Robinson Helicopter R44 II |
Helicopter | Dakota Rotors LLC Custer, South Dakota |
Standard | 2022-01-03 | ValidFAA registration status code V: Valid registration. All codes |
| N503HV | Robinson Helicopter R44 II |
Helicopter | Helivision LLC Concord, North Carolina |
Standard | 2021-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N817PT | Robinson Helicopter R44 II |
Helicopter | Sundance Aero LLC Mertzon, Texas |
Standard | 2021-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N812BZ | Robinson Helicopter R44 II |
Helicopter | Aloha Helicopter Tours LLC Lihue, Hawaii |
Standard | 2021-12-14 | ValidFAA registration status code V: Valid registration. All codes |
| N8791C | Robinson Helicopter R44 II |
Helicopter | Helipl LLC Winter Garden, Florida |
Standard | 2021-11-29 | ValidFAA registration status code V: Valid registration. All codes |
| N387VB | Robinson Helicopter R44 II |
Helicopter | Ent Aviation LLC Smithfield, Virginia |
Standard | 2021-11-13 | ValidFAA registration status code V: Valid registration. All codes |
| N866MP | Robinson Helicopter R44 II |
Helicopter | A&L Enterprises LLC Maiden Rock, Wisconsin |
Standard | 2021-11-10 | ValidFAA registration status code V: Valid registration. All codes |
| N251TL | Robinson Helicopter R44 II |
Helicopter | Tlh-1 LLC Anchorage, Alaska |
Standard | 2021-11-09 | ValidFAA registration status code V: Valid registration. All codes |
| N26UP | Robinson Helicopter R44 II |
Helicopter | Bgt Operations LLC Equality, Illinois |
Standard | 2021-10-27 | ValidFAA registration status code V: Valid registration. All codes |
| N148RH | Robinson Helicopter R44 |
Helicopter | Plum Aggregate LLC Porter, Texas |
Multiple | 2021-10-26 | ValidFAA registration status code V: Valid registration. All codes |
| N533SH | Robinson Helicopter R44 II |
Helicopter | Individual owner Wyoming |
Standard | 2021-10-26 | ValidFAA registration status code V: Valid registration. All codes |
| N590GG | Robinson Helicopter R44 II |
Helicopter | Individual owner Georgia |
Standard | 2021-10-21 | ValidFAA registration status code V: Valid registration. All codes |
| N696WL | Robinson Helicopter R44 II |
Helicopter | Kyle Walker Partners LLC San Antonio, Texas |
Standard | 2021-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N521LS | Robinson Helicopter R44 II |
Helicopter | Global Aerials INC Pembroke Pines, Florida |
Standard | 2021-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N686BD | Robinson Helicopter R44 II |
Helicopter | Ashcraft Aviation LLC Bay City, Texas |
Standard | 2021-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N404GG | Robinson Helicopter R44 II |
Helicopter | Next Level Aviation LLC Pflugerville, Texas |
Standard | 2021-09-13 | ValidFAA registration status code V: Valid registration. All codes |
| N7425T | Robinson Helicopter R44 II |
Helicopter | Leading Edge Flight Academy LLC Bend, Oregon |
Standard | 2021-09-08 | ValidFAA registration status code V: Valid registration. All codes |
| N55TP | Robinson Helicopter R44 II |
Helicopter | Co-owned owner Washington |
Standard | 2021-09-02 | ValidFAA registration status code V: Valid registration. All codes |
| N805HD | Robinson Helicopter R44 II |
Helicopter | Co-owned owner California |
Standard | 2021-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N844MB | Robinson Helicopter R44 II |
Helicopter | Victor Foxtrot LLC Scott City, Kansas |
Standard | 2021-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N442JP | Robinson Helicopter R44 II |
Helicopter | Fix Wing LLC Fort Lauderdale, Florida |
Standard | 2021-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N534MF | Robinson Helicopter R44 II |
Helicopter | Sky Solutions LLC Detroit, Michigan |
Standard | 2021-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N583CT | Robinson Helicopter R44 II |
Helicopter | Dog & Bear LLC Longboat Key, Florida |
Standard | 2021-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N456JJ | Robinson Helicopter R44 II |
Helicopter | Individual owner Colorado |
Standard | 2021-08-23 | ValidFAA registration status code V: Valid registration. All codes |
| N244DK | Robinson Helicopter R44 II |
Helicopter | Tiki Helicopters LLC Riviera Beach, Florida |
Standard | 2021-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N400HD | Robinson Helicopter R44 II |
Helicopter | Spitzer Helicopter LLC Wilmington, Delaware |
Standard | 2021-08-14 | ValidFAA registration status code V: Valid registration. All codes |
| N409SH | Robinson Helicopter R44 II |
Helicopter | Sky Solutions LLC Westland, Michigan |
Standard | 2021-08-14 | ValidFAA registration status code V: Valid registration. All codes |
| N284SW | Robinson Helicopter R44 II |
Helicopter | Co-owned owner Oregon |
Standard | 2021-08-12 | ValidFAA registration status code V: Valid registration. All codes |
| N741RH | Robinson Helicopter R44 II |
Helicopter | United Helicopter Leasing LLC Honolulu, Hawaii |
Standard | 2021-08-10 | ValidFAA registration status code V: Valid registration. All codes |
| N300UH | Robinson Helicopter R44 II |
Helicopter | Alba Leasing Services LLC Scottsdale, Arizona |
Standard | 2021-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N3125U | Robinson Helicopter R44 II |
Helicopter | Alba Leasing Services LLC Scottsdale, Arizona |
Standard | 2021-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N333UH | Robinson Helicopter R44 II |
Helicopter | Alba Leasing Services LLC Scottsdale, Arizona |
Standard | 2021-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N1253P | Robinson Helicopter R44 II |
Helicopter | Maco Aviation INC Dayton, Washington |
Restricted | 2021-07-30 | ValidFAA registration status code V: Valid registration. All codes |
| N944BH | Robinson Helicopter R44 II |
Helicopter | Black Hills Helicopters INC Rapid City, South Dakota |
Standard | 2021-07-29 | ValidFAA registration status code V: Valid registration. All codes |
| N244TB | Robinson Helicopter R44 II |
Helicopter | Submissive Air INC Deadwood, South Dakota |
Standard | 2021-07-27 | ValidFAA registration status code V: Valid registration. All codes |
| N442VB | Robinson Helicopter R44 II |
Helicopter | Hicks Seal Coating & Striping LLC Bell, Florida |
Standard | 2021-07-27 | ValidFAA registration status code V: Valid registration. All codes |
| N644ME | Robinson Helicopter R44 II |
Helicopter | Ras Aviation LLC Mansfield, Illinois |
Standard | 2021-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N20TR | Robinson Helicopter R44 II |
Helicopter | Alpine Aire Aviation LLC West Haven, Utah |
Restricted | 2021-07-19 | ValidFAA registration status code V: Valid registration. All codes |
| N72WD | Robinson Helicopter R44 II |
Helicopter | Zatzworks INC Homer, Alaska |
Standard | 2021-07-12 | ValidFAA registration status code V: Valid registration. All codes |
| N426JK | Robinson Helicopter R44 II |
Helicopter | Huku 2 LLC Princeton, New Jersey |
Standard | 2021-07-01 | ValidFAA registration status code V: Valid registration. All codes |
| N987WH | Robinson Helicopter R44 II |
Helicopter | Alpha Aviation LLC Anchorage, Alaska |
Standard | 2021-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N273S | Robinson Helicopter R44 II |
Helicopter | State of Alaska Department of Public Safety Anchorage, Alaska |
Standard | 2021-06-23 | ValidFAA registration status code V: Valid registration. All codes |
| N899GS | Robinson Helicopter R44 II |
Helicopter | Dead Eye LLC Lewes, Delaware |
Standard | 2021-06-17 | ValidFAA registration status code V: Valid registration. All codes |
| N3206M | Robinson Helicopter R44 II |
Helicopter | Hme Aviation LLC Mount Pleasant, South Carolina |
Standard | 2021-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N729DB | Robinson Helicopter R44 II |
Helicopter | Ttheil LLC Saxonburg, Pennsylvania |
Standard | 2021-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N15PK | Robinson Helicopter R44 II |
Helicopter | Goa Flying LLC Knoxville, Tennessee |
Standard | 2021-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N4043B | Robinson Helicopter R44 II |
Helicopter | Crown Point Helicopter LLC Morton Grove, Illinois |
Standard | 2021-04-06 | ValidFAA registration status code V: Valid registration. All codes |
| N3027W | Robinson Helicopter R44 II |
Helicopter | S2 Helicopter Services LLC Albany, Texas |
Standard | 2021-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N870DK | Robinson Helicopter R44 II |
Helicopter | Foth Air LLC Onida, South Dakota |
Standard | 2021-03-23 | ValidFAA registration status code V: Valid registration. All codes |
| N4132Z | Robinson Helicopter R44 II |
Helicopter | Vertical Lift INC Friendship, Wisconsin |
Standard | 2021-03-20 | ValidFAA registration status code V: Valid registration. All codes |
| N101GD | Robinson Helicopter R44 II |
Helicopter | 101 Gd CORP Miami, Florida |
Standard | 2021-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N513TL | Robinson Helicopter R44 II |
Helicopter | N468Ha INC Middletown, Delaware |
Standard | 2021-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N4529J | Robinson Helicopter R44 II |
Helicopter | Star Quest LLC Wilmington, Delaware |
Standard | 2021-03-10 | ValidFAA registration status code V: Valid registration. All codes |
| N72HH | Robinson Helicopter R44 II |
Helicopter | Plane Fun INC Tr Trustee Snellville, Georgia |
Standard | 2021-03-10 | ValidFAA registration status code V: Valid registration. All codes |
| N152S | Robinson Helicopter R44 II |
Helicopter | Veracity Aviation LLC Seguin, Texas |
Standard | 2021-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N882GD | Robinson Helicopter R44 II |
Helicopter | Costa Helicopter Services LLC Aventura, Florida |
Standard | 2021-02-23 | ValidFAA registration status code V: Valid registration. All codes |
| N145PD | Robinson Helicopter R44 II |
Helicopter | Spitzer Helicopter LLC Wilmington, Delaware |
Standard | 2021-02-16 | ValidFAA registration status code V: Valid registration. All codes |
| N60FM | Robinson Helicopter R44 II |
Helicopter | Armstrong Helicopters LLC Laredo, Texas |
Standard | 2021-02-10 | ValidFAA registration status code V: Valid registration. All codes |
| N7106Z | Robinson Helicopter R44 II |
Helicopter | N7106Z LLC Chatsworth, California |
Standard | 2021-02-01 | ValidFAA registration status code V: Valid registration. All codes |
| N644BB | Robinson Helicopter R44 II |
Helicopter | Airman Helicopter INC Fort Lauderdale, Florida |
Standard | 2021-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N776BH | Robinson Helicopter R44 II |
Helicopter | Global Aircraft Leasing LLC Homer, Alaska |
Standard | 2021-01-20 | ValidFAA registration status code V: Valid registration. All codes |
| N997SR | Robinson Helicopter R44 II |
Helicopter | Spitzer Helicopter LLC Wilmington, Delaware |
Standard | 2021-01-16 | ValidFAA registration status code V: Valid registration. All codes |
| N4395D | Robinson Helicopter R44 II |
Helicopter | Whirl'D Helicopters INC Sevierville, Tennessee |
Standard | 2021-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N4177G | Robinson Helicopter R44 II |
Helicopter | Cedar Ridge Aviation LLC Knox City, Texas |
Restricted | 2021-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N458SG | Robinson Helicopter R44 II |
Helicopter | Cedar Ridge Aviation LLC Knox City, Texas |
Restricted | 2021-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N616NC | Robinson Helicopter R44 II |
Helicopter | Cedar Ridge Aviation LLC Knox City, Texas |
Multiple | 2021-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N54EH | Robinson Helicopter R44 II |
Helicopter | Mcgyver Airshows LLC Wilmington, Delaware |
Standard | 2020-12-29 | ValidFAA registration status code V: Valid registration. All codes |
| N7508Z | Robinson Helicopter R44 II |
Helicopter | Rotorwing LLC Sheffield, Illinois |
Restricted | 2020-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N358DG | Robinson Helicopter R44 II |
Helicopter | Sky Equipment LLC Salem, Wisconsin |
Standard | 2020-12-17 | ValidFAA registration status code V: Valid registration. All codes |
| N590VM | Robinson Helicopter R44 II |
Helicopter | Co-owned owner Texas |
Standard | 2020-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N486AK | Robinson Helicopter R44 II |
Helicopter | Deckload Aviation LLC Kodiak, Alaska |
Standard | 2020-11-18 | ValidFAA registration status code V: Valid registration. All codes |
| N141AH | Robinson Helicopter R44 II |
Helicopter | Atlantic Aviation International INC Lewes, Delaware |
Standard | 2020-11-07 | ValidFAA registration status code V: Valid registration. All codes |
| N570GG | Robinson Helicopter R44 II |
Helicopter | Glenwood Farm LLC Edgerton, Missouri |
Standard | 2020-10-16 | ValidFAA registration status code V: Valid registration. All codes |
| N371MP | Robinson Helicopter R44 II |
Helicopter | N371Mp INC Middletown, Delaware |
Standard | 2020-10-14 | ValidFAA registration status code V: Valid registration. All codes |
| N283TY | Robinson Helicopter R44 II |
Helicopter | Soleil Helicopters LLC Tucson, Arizona |
Standard | 2020-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N144BV | Robinson Helicopter R44 II |
Helicopter | Southern Utah University Cedar City, Utah |
Standard | 2020-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N4QH | Robinson Helicopter R44 II |
Helicopter | Talkeetna Air Taxi INC Talkeetna, Alaska |
Standard | 2020-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N532SH | Robinson Helicopter R44 II |
Helicopter | Individual owner Idaho |
Standard | 2020-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N578SA | Robinson Helicopter R44 II |
Helicopter | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2020-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N569CD | Robinson Helicopter R44 II |
Helicopter | Dgt Aviation LLC New Bern, North Carolina |
Standard | 2020-09-02 | ValidFAA registration status code V: Valid registration. All codes |
| N20LS | Robinson Helicopter R44 II |
Helicopter | Individual owner Alaska |
Standard | 2020-08-31 | ValidFAA registration status code V: Valid registration. All codes |
| N141LS | Robinson Helicopter R44 II |
Helicopter | Mthh Management Hamilton, Montana |
Standard | 2020-08-28 | 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.