# TCDS E11EA: Lycoming Engines

- Type: Type certificate data sheet
- Status: Current
- Holder: Lycoming Engines
- Revision: 3
- Revised: June 23, 2010
- Product: Engine
- Certification basis: CAR 13
- Data sheet PDF: https://openairdocs.org/files/sha256/c0/65/c065fb606ed08c3be217e646b3238b4f34e96cd7ef87310de697902d6c98e64f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7AE6A09749A52149862577CF00521114.0001
- Page: https://openairdocs.org/tcds/E11EA

## Models (1)

As the data sheet lists them.

- IVO-540-A1A

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1 2 
Rev. No. 3 3 
 
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
E11EA 
Revision 3 
Lycoming Engines 
IVO-540-A1A 
June 23, 2010 
 
TYPE CERTIFICATE DATA SHEET NO. E11EA 
 
 
Engines of models described herein conforming with this data sheet (which is a part of type certificate No. E11EA) and other 
approved data on file with the Federal Aviation Administration, meet the minimum standards for use in certificated aircraft in 
accordance with pertinent aircraft data sheets, and applicable portions of the Civil Air Regulations/Federal Aviation Regulations 
provided they are installed, operated, and maintained as prescribed by the approved manufacturer’s manuals and other approved 
instruction. 
 
Type Certificate Holder Lycoming Engines 
 An Operating Division of AVCO Corporation 
 Williamsport, Pennsylvania 17701 
 
Type Certificate Holder Record Lycoming Div., AVCO Co rporation, Williamsport, PA. transferred TC E11EA to 
Lycoming Engines, An Operating Division of AVCO Corporation on June 23, 2010 
 
Model                                                     Lycoming IVO-540-A1A  
Type  6HOA Vertical Mounted Direct Drive  
  
Rating  
 Max. continuous, hp., r.p.m., full throttle at:  
 Sea level pressure altitude 305-3200-3000 ft. 
 Takeoff (5 min.) hp., r.p.m., full throttle at  
 Sea level pressure altitude 305-3200-3000 ft. 
Fuel (min. grade aviation gasoline) 100/130 
Lubricating oil (Lubricants should conform to the specifications Lycoming Spec. No. 301-G# 
 as listed or later revisions thereto)  
Bore and stroke, in. 5.125 x 4.375 
Displacement, cu. in. 541.5 
Compression ratio 8.7:1 
Weight (dry) lb. 435 
C. G. location (dry and in horizontal position)  
 from front face of crankcase, in. 14.84 
 Off propeller shaft C. L., in. .09 below 
 .26 left 
Propeller shaft Six bolt flange type power takeoff 
Fuel injection RSA-1OAD1* 
Ignition, dual S6RN-200+ 
 S6LN-204+ 
Ignition timing BTC 25 
Spark plugs See NOTE 6 
Oil pump capacity Dry sump 
NOTES 1, 2, 3, 4, 5, 6, 7 
  
 
# See latest edition of Lycoming Service Instruction 1014 
PAC (Precision Airmotive Corp)  formerly Bendix 
TCM (Teledyne Continental Motors)  formally Bendix

E11EA 2 
Certification basis: 
 
Production basis: Production Certificate No. 3. 
 
NOTE 1.  Maximum permissible temperatures: 
 
  Cylinder head (well type)  500 F 
  Cylinder base   See NOTE 7 
  Oil inlet    235 F 
 
NOTE 2.  Fuel pressure limits  Minimum  Maximum Idle (min .) 
  (at inlet to injector)  20 p.s.i.  45 p.s.i.  12 p.s.i. 
  Oil pressure limits  65 p. s.i.  85 p.s.i.  25 p.s.i. 
 
NOTE 3.  The following accessory provisions are available: 
   
 Rotation Speed Ratio Maximum Torque  
 Facing to (in. - lb.) Maximum Overhand 
Accessory Drive Pad Crankshaft C ontinuous Static Moment (in.-lb.) 
Starter C 1.000:1 - 12,000 300 
Generator * C 2.600:1 500 2,200 400 
Fuel Pump CC .803:1 25 450 25 
Vacuum Pump C 1.219:1 200 800 25 
Hydraulic Pump C 1.083:1 400 1,650 175 
Tachometer CC .500:1 7 50 - 
 
  “C” - Clockwise, “CC” - counter-clockwise 
  * Inoperative as generator drive when fitted with had crank jaw. 
 
NOTE 4.  This engine is approved for helicopter a pplication and operation in a vertical installation. 
 
NOTE 5.  Basic Model.  Six cylinder air-cooled, horizonta lly apposed, vertical direct drive, fuel injected,  
  dry sump engine with internal piston cooling oil jets and side mounted AN type accessory drives. 
 
NOTE 6. Spark plugs:  See latest revision of Lycomi ng Service Instruction No. 1042 for approved equipment. 
 
NOTE 7.  Cylinder base temperature limits are not appli cable to engine models which incorporate internal 
  piston cooling oil jets. 
 
 
...END... 
   Data Type Certificate 
Regulations & Amendments Model  Date of Application  No. E11EA Issued  
CAR 13 effective June 15, 1956 IVO-540-A1A December 2, 1964 April 20, 1965 
as amended by 13-1, 13-2, 13-3
```

## ADs (22, in force first)

- [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026
- [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015
- [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012
- [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 2009
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997
- [AD 95-07-01](https://openairdocs.org/ad/95-07-01): Connecting Rod Bolt · Lycoming Engines AEIO-360-A1E, AEIO-360-B1G6, AEIO-360-H1A and 177 more. Effective Apr 12, 1995
- [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992
- [AD 80-04-04 R1](https://openairdocs.org/ad/80-04-04-R1): Crankshaft Flange Bolts · Lycoming Engines IVO-540-A1A, TIVO-540-A2A, TVO-435-A1A and 38 more. Effective Aug 18, 1980
- [AD 79-04-05](https://openairdocs.org/ad/79-04-05): Regulator Diaphragm Stem Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 215 more. Effective Sep 26, 1979
- [AD 78-23-10](https://openairdocs.org/ad/78-23-10): Center Body Bellows Seal Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 218 more. Effective Nov 7, 1978
- [AD 75-09-15](https://openairdocs.org/ad/75-09-15): Fuel Starvation To The Engine · Lycoming Engines AIO-320-A1A, AIO-320-A1B, AIO-320-A2A and 130 more. Effective Apr 30, 1975
- [AD 73-05-01](https://openairdocs.org/ad/73-05-01): Connecting Rod Bearing Assemblies · Lycoming Engines IVO-540-A1A, TIVO-540-A2A, TVO-540-A1A and 21 more. Effective Jul 9, 1974
- [AD 73-10-02](https://openairdocs.org/ad/73-10-02): Bendix Fuel Injectors · Bendix Fuel Injectors, AIO-320-A1A, AIO-320-A1B and 88 more. Effective May 16, 1973
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969
- [AD 68-08-08](https://openairdocs.org/ad/68-08-08): Hydraulic Valve · Lycoming Engines IGSO-480-A1A6, IGSO-480-A1B6, IGSO-480-A1C6 and 44 more. Effective May 19, 1968
- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024
- [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012
- [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011
- [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008
- [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008
- [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003

## Registered aircraft by registry model (OpenAirDocs)

- [Lycoming IVO-540-A1A](https://openairdocs.org/engine/lycoming-ivo-540-a1a): 0 aircraft (registry code 41965)

## STCs approved under this data sheet (16)

- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd.
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal.. Ly-Con Rebuilding Company
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc.
- [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters.. Cygnet Aerospace Corp
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC): Installation of fuel injector nozzles.. General Aviation Modifications Inc.
- [STC SE1339SW](https://openairdocs.org/stc/SE1339SW): Modify pistons to Drawings 11007 and 11015; piston rings. Continental Motors, Inc.
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts.. Continental Motors, Inc.
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings.. Continental Motors, Inc.
- [STC SE7582SW](https://openairdocs.org/stc/SE7582SW): Grinding of high compression NITRIDED Cylinders to .010 oversize, as an alternative to chrome plating or rebarreling, and the installation of  SL10207 P10 Piston, SL74241 P10 Top and second compression ring, and SL 73857 P10 oil control ring. Superior Air Parts, Inc
- [STC SE00890LA](https://openairdocs.org/stc/SE00890LA): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models.. Nickson's Machine Shop Inc
- [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.. Exxon Company USA
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil.. Mobil Research & Development Corp
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP.. Phillips Petroleum Co
- [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines.. Perrigo & Steele Aircraft Engr Company
- [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less.. Bel-Ray Company, Inc

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