# TCDS E10EA: Lycoming Engines

- Type: Type certificate data sheet
- Status: Current
- Holder: Lycoming Engines
- Revision: 8
- Revised: November 4, 2010
- Product: Engine
- Certification basis: CAR 13
- Registered aircraft: 283, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/bb/8e/bb8e2a25e8840428a731ff76a3ccb942262914bef601e131314c2c0f489553cc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/15878A16BD4BAEF78625780E005A9CDE.0001
- Page: https://openairdocs.org/tcds/E10EA

## Models (5)

As the data sheet lists them.

- TIO-541-E1A4
- TIO-541-E1B4
- TIO-541-E1C4
- TIO-541-A1A
- TIO-541-E1D4

## What the data sheet says

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

```text
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
E10EA 
Revision 8 
Lycoming Engines 
TIO-541-A1A 
TIO-541-E1A4, -E1B4 
-E1C4, -E1D4 
 
November 04, 2010 
TYPE CERTIFICATE DATA SHEET NO. E10EA 
 
Engines of models described herein conforming with this data sheet (which is a part of Type Certificate No. E10EA) 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 
instructions. 
 
Type Certificate Holder Lycoming Engines 
 An Operating Division of AVCO Corporation 
 Williamsport, Pennsylvania 17701 
 
Type Certificate Holder Record Avco Lycoming Division,  Avco Corp. Williamsport PA transferred TC E10EA to 
Lycoming Engines, An Operating Division of AVCO Corporation on November 04, 
2010 
 
Model     Lycoming TI0-541 -A1A       -E1A4, -E1B4 , -E1C4, -E1D4 
Type   6H0A Direct Drive Turbosupercharged  
Rating (See NOTE 4)   
Maximum continuous, hp., r.p.m, in. Hg., at: 310-2575-37.0-15,000 380-2900-41.9-15,000 
  Standard density, critical alt. ft. 310-2575-37.0-S.L. 380-2900-41.0-S.L. 
  Standard density, sea level alt. ft.   
Takeoff (5 min.), hp., r.p.m., in. Hg., at:   
  Standard density, critical alt. ft. 310-2575-37.0-15,000 380-2900-41.9-15000 
  Standard density sea level alt. ft. 310-2575-37.0-S.L. 380-2900-41.0-S.L. 
Fuel (minimum grade aviation gasoline) 100/130 - - 
Lubricating oil (lubricants should conform to the 
specification as listed or to subsequent revisions 
thereto) 
See Latest Edition of Lycoming 
Service Instruction No. 1014 - - 
Bore and stroke, in. 5.125 x 4.375 - - 
Displacement, cu. in. 541.5 - - 
Compression Ratio 7.3:1 - - 
Weight (dry), lb. See NOTE 7 - - 
C.G. location (with starter & generator  
  installed) 
See NOTE 7 - - 
Propeller shaft flange, SAE No. AS127 Type 2 modified - - 
Crankshaft dampers (torsional) See NOTE 6 - - 
Fuel injection See NOTE 7 - - 
Turbosupercharger Kelly Aerospace* (See NOTE 
4) 
- - 
Ignition, dual TCM+ (See NOTE 7)  
Ignition timing BTC 20 - - 
Spark plugs See NOTE 5 - - 
Oil, sump capacity, qts. - total and usable See NOTE 7 - - 
 
NOTES  
 
1 thru 9 
 
- - 
 
"- -" indicates "same as preceding model"; " " indicates "does not apply" 
* Kelly Aerospace formerly AiResearch 
+ TCM formerly Scintilla

Certification basis:    
 
Regulations and Amendments 
 
Model 
 
Date of Application 
Date Type Certificate  
No. E10EA Issued/Revised 
CAR 13 Effective June 15, 1956 TIO-541- A1A December 16, 1963 February 23, 1965 
As Amended By 13-1, 13-2, & 13-3 & 13-4 TIO-541-E1A4 December 14, 1965 December 16, 1966 
 TIO-541-E1B4 June 1, 1966 December 16, 1966 
 TIO-541-E1C4 October 13, 1969 October 21, 1969 
 TIO-541-E1D4 October 13, 1969 October 21, 1969 
 
Production basis: Production Certificate No. 3 
 
NOTE 1. Maximum permissible temperatures:  
Cylinder head (well type thermocouple) 475°F  
Cylinder base - This parameter dispensed with four engines equipped with internal piston cooling oil jets.  See NOTE 8. 
Oil inlet 245°F 
Fuel injector air inlet 300°F 
Exhaust gas (Turbo inlet at location shown 1650°F 
  on Lycoming Dwg. Nos. 63204 (-A1A) -63250 (-E1A4, -E1B4) -63304 (-E1C4 & -E1D4)) 
Compressor temperature rise (-A1A) 280°F (-E1A4, -E1B4, -E1C4, -E1D4) 320°F 
 
NOTE 2. Pressure limits.  Min.   Max.   Idle (Min.)  
 Fuel pressure limits  -A1A 29 p.s.i.   60 p.s.i.  12 p.s.i. 
   (above fuel injector inlet air press.) -E1A4, -E1B4  
   (at inlet to fuel injector)  -E1C4, -E1D4 20 p.s.i. 
 
 Oil pressure limits:  60 p.s.i.     90 p.s.i.  25 p.s.i. 
 Start and warm-up    100 p.s.i.   
 
 Fuel injector inlet pressure    40.5 in. Hg.  
 Manifold pressure    40 in. Hg.    
 Turbo supercharger exhaust back   0.5 in. Hg.   
   pressure 
 
NOTE 3. The following accessory provisions are available: 
  -E1A4     
  -E1B4   Maximum To rque Maximum Overhang 
  -E1C4 Rotation Facing Speed Ratio in. -lb. Moment 
Accessory -A1A -E1D4 Drive Pad to Crankshaft Cont Static in. - lb. 
Starter * * CC 16.566:1  450 150 
Alternator * * C 3.250:1 60 120 175 
Vacuum or 
  Hydraulic Pump 
*  C 1.500:1 200 1600 50 
Vacuum or   
Hydraulic Pump 
*  CC 1.500:1 Total Total 50 
Vacuum or 
  Hydraulic Pump 
 * C 1.000:1 200 1600 50 
Vacuum or 
  Hydraulic Pump 
 * CC 1.000:1 Total Total 50 
Tachometer * * CC .500:1 7 50 5 
Propeller    
  Governor 
* * CC .895:1 125 825 25 
Fuel Pump * * CC 1.000:1 25 450 25 
Air Compressor  * CC 1.000:1 Belt Limited 100 
"C" - Clockwise, "CC" - Counter clockwise 
* Standard   ** Optional

NOTE 4. These engines are equipped with a Kelly Aerospace* tur bosupercharger models mounted as an integral part of the 
engines as shown on Lycoming Drawings: 
* Kelly Aerospace formerly AiResearch 
 
     Turbosupercharger 
      Model Drawing No. 
   -A1A   T-1823  63204 
   -E1A4, -E1B4  T-1823  63250  
   -E1C4, -E1D4  T-1879  63304 
 
   Performance data for these engines are presented on Lycoming Curve Nos. 12987B(A1A), 13055A (E1A4, -E1B4, -
E1C4, -E1D4). 
 
   This turbocharger meets the containment requirements of CAR 13.166 and does not require external protection.  Air 
from the compressor of this turbocharger may be used for cabin pressurization. 
 
NOTE 5. Spark plugs approved for use on these engines are listed in the latest revision of Lycoming Service Instruction No. 
1042. 
 
NOTE 6. These engines incorporate crankshafts with one fifth order and one sixth order dampers unless the digit "4" follows 
the model designation, i.e., -E1A4.  Engines so designated, (---4), have one 3.5 order, one fourth order, one fifth 
order and one sixth order pendulum type counterweights. 
 
NOTE 7. The following tabulation shows weight, C.G., fuel injectors, oil sump capacities and ignition: 
 
  Center of Gravity, in.   Fuel Oil Sump Capacities (Qts) 
  From Front Face of Off Centerline Injector + Usable 20° Ignition Dual 
Model Weight  Prop Shaft Flange  of Crankshaft  PAC*  Total Nose up or down  Bendix  
-A1A 549 21.00  .06 Below 
& .13 Right 
RSA-
10AD1 
14 10.0 S6LN-1208;  
S6RN-1209 
-E1A4 595 23.35  .05 Below 
& .05 Left 
RSA-10DB1 13 10.5 S6LN-1208; 
S6RN-1209 
-E1B4 595 23.35  .05 Below 
& .05 Left 
RSA-10DB1 13 10.5 S6LN-1208; 
S6RN-1209 
-E1C4 586 22.86  .06 Below 
& .03 Right 
RSA-10DB1 13 10.5 S6LN-1208; 
S6RN-1209 
-E1D4 584 22.86  .06 Below 
& .03 Right 
RSA-10DB1 13 10.5 S6LN-1208; 
S6RN-1209 
 
+  For alternate fuel injectors see latest edition of Lycoming Service Instruction 1532 
* PAC formerly Bendix 
 
NOTE 8. Model similarities and differences. 
 
 TI0-541-A1A Basic model.  Six cylinder, air cooled, horizontally opposed, direct drive, fuel injection, 
turbosupercharged engine with topside induction, down exhaust and side mounted accessory 
drives.  Provides for single acting, controllable pitch propeller and has internal piston cooling 
oil jets. 
 
  -E1A4 Similar to -A1A but has hi gher rating, uses different cylinder heads, cam shaft, crankshaft and 
additional counterweights.  Has cabin pressurizing venturi. 
 
  -E1B4 Similar to -E1A4 but does not in corporate a cabin pressurization venturi. 
  
  -E1C4 Similar to -E1A4 except for different tur bosupercharger with cast bracket, cast transition and 
separate wastegate. 
 
  -E1D4 Similar to -E1B4 except for different tur bosupercharger with cast bracket, cast transition and 
separate wastegate. 
 
NOTE 9. Starters, generators and alternat ors approved for use on these engines are listed in the latest revision of Lycoming 
Service Instruction No. 1154. 
 
- END -
```

## ADs (18, 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 2022-16-03](https://openairdocs.org/ad/2022-16-03): Engine (RECIPROCATING) · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 236 more. Effective Aug 15, 2022
- [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 2011-13-03](https://openairdocs.org/ad/2011-13-03): Turbocharger Turbine · Lycoming Engines LTO-360-E1A6D, O-540-L3C5D, TIGO-541-E1A and 20 more. Effective Jul 13, 2011
- [AD 2010-07-08](https://openairdocs.org/ad/2010-07-08): Turbochargers · Kelly Aerospace Energy Systems HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 137 more. Effective Apr 19, 2010
- [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 2002-12-07](https://openairdocs.org/ad/2002-12-07): Oil Filter Converter Plate Gasket or the Converter Plate Kit · Lycoming Engines HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 95 more. Effective Jul 3, 2002
- [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 91-08-07](https://openairdocs.org/ad/91-08-07): Fuel Pump · Lycoming Engines TIO-360-A1A, TIO-360-A1B, TIO-360-A3B6 and 51 more. Effective May 6, 1991
- [AD 83-22-04](https://openairdocs.org/ad/83-22-04): Injector Fuel Diaphragm Stem · Lycoming Engines AEIO-540-L1B5D, IO-540-AA1A5, IO-540-G1B5 and 30 more. Effective Nov 4, 1983
- [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 73-23-01](https://openairdocs.org/ad/73-23-01): Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 more. Effective Jan 13, 1977
- [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 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 2000-18-53](https://openairdocs.org/ad/2000-18-53) (historical): Oil Filter Converter Plate Gaskets · Textron Lycoming, AVCO AEIO-540, IO-360-A1B6D, IO-360-A1D6D and 73 more

## Registered aircraft by registry model (OpenAirDocs)

- [Lycoming TI0-541 series](https://openairdocs.org/engine/lycoming-ti0-541-series): 271 aircraft (registry code 41536)
- [Lycoming TIO-541-E1C4](https://openairdocs.org/engine/lycoming-tio-541-e1c4): 9 aircraft (registry code 41963)
- [Lycoming TIO-541 series](https://openairdocs.org/engine/lycoming-tio-541-series): 2 aircraft (registry code 41698)
- [Lycoming TIO-541-A1A](https://openairdocs.org/engine/lycoming-tio-541-a1a): 1 aircraft (registry code 41960)
- [Lycoming TIO-541-E1A4](https://openairdocs.org/engine/lycoming-tio-541-e1a4): 0 aircraft (registry code 41961)
- [Lycoming TIO-541-E1B4](https://openairdocs.org/engine/lycoming-tio-541-e1b4): 0 aircraft (registry code 41962)
- [Lycoming TIO-541-E1D4](https://openairdocs.org/engine/lycoming-tio-541-e1d4): 0 aircraft (registry code 41964)

## STCs approved under this data sheet (26)

- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd.
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc.
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc.
- [STC SE01436LA](https://openairdocs.org/stc/SE01436LA): Installation of Firewall Forward Technologies LLC modified camshaft. Centri-lube Technologies LLC
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp
- [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 SE01714SE](https://openairdocs.org/stc/SE01714SE): Install valve push rod seals Part Number CB-15 and retainer rings Part Number CB-14.. B & B Aviation LLC
- [STC SE01716SE](https://openairdocs.org/stc/SE01716SE): Install one engine set (12) CB-15861 valve lifters.. B & B Aviation LLC
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings.. Continental Motors, Inc.
- [STC SE00218NY](https://openairdocs.org/stc/SE00218NY): Replacement of Lycoming starter with SKY-TEC 12 volt starter installed.. Hartzell Engine Technologies, LLC
- [STC SE00226NY](https://openairdocs.org/stc/SE00226NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter.. Hartzell Engine Technologies, LLC
- [STC SE00357NY](https://openairdocs.org/stc/SE00357NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter installed.. Hartzell Engine Technologies, LLC
- [STC SE00584DE](https://openairdocs.org/stc/SE00584DE): Installation of modified Oil Filter Adapter, an increased opening pressure spring for filter bypass, and modified filter stud.. Centri-Lube Technologies LLC
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [STC SE3350NM](https://openairdocs.org/stc/SE3350NM): Installation of American Aviation intercooler and associated systems.. American Aviation 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 SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector.. Aviation Development Corporation
- [STC SE7674SW](https://openairdocs.org/stc/SE7674SW): Grind nitrided cylinder barrels plus .010 over size pistons, to .010 and install SL10545P10 SL74241P10 compression rings and SL73857P10 Oil Control rings.. Superior Air Parts, Inc
- [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 SE3346NM](https://openairdocs.org/stc/SE3346NM): Installation of Merlyn Products Inc induction air intercooler system. Merlyn Products Inc.
- [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 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
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.. AMS/OIL
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft.. Centri-Lube Technologies LLC

---
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