# TCDS E-228: Lycoming Engines

- Type: Type certificate data sheet
- Status: Current
- Holder: Lycoming Engines
- Revision: 17
- Revised: June 23, 2010
- Product: Engine
- Certification basis: CAR 13
- Registered aircraft: 144, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/f5/f9/f5f92ba6799569348249ec557acee5fb7be8ad1e3ce4a6fa190de5774ceec22c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4063EF6ED938238E862577CF0054C9E4.0001
- Page: https://openairdocs.org/tcds/E-228

## Models (20)

As the data sheet lists them.

- O-435-A
- O-435-A2
- O-435
- GO-435-C2B1
- O-435-C2 (O-435-13)
- O-435-K
- GO-435-C2A
- GO-435-C2E
- GO-435-C2 (O-435-17)
- GO-435-C2B
- GO-435-C2D
- GO-435
- GO-435-C2C
- GO-435-D1
- GO-435-C2A2
- O-435-C1 (O-435-11)
- O-435-C (O-435-1)
- O-435-B (O-435-5)
- O-435-K1 (O-435-4)
- GO-435-C2B2

## 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 
 
 
 
 
O-435, -A, -A2 
O-435-B (O-435-5) 
O-435-C (O-435-1) 
O-435-C1 (O-435-11) 
O-435-C2 (O-435-13) 
O-435-K 
O-435-K1 (O-435-4) 
E-228 
Revision 17 
Lycoming Engines 
 
GO-435 
GO-435-C2 (O-435-17) 
GO-435-C2A, -C2A2 
GO-435-C2B, -C2B1, -C2B2 
GO-435-C2C, -C2D, -C2E 
GO-435-D1 
 
June 23, 2010 
 
TYPE CERTIFICATE DATA SHEET NO. E-228 
 
Engines of models described herein conforming with this data sheet (which is a part of type certificate No. E-228) 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 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 Lycoming Division AVCO Corporation., Williamsport, PA. transferred TC 284 to 
Lycoming Engines, An Operating Division of AVCO Corporation on June 23, 2010 
 
Model   Lycoming O-435 O-435-B O-435-A2 O-435-K, K1 O-435-A 
Type    6H0A - - - - - - - - 
Reduction gearing ratio Direct Drive - - - - - - - - 
Rating      
Max. continuous, hp., r.p.m.,  
S.L. pressure altitude 175-2300-S.L. 235-3000-S.L. 225-3000-S.L. 240-3000-S.L. (-K) 250-3200-S.L. (K1) 190-2550-S.L. 
Takeoff, 5 min., hp., r.p.m.  
at full throttle 175-2300 235-3000 225-3000 - - 190-2550 
Fuel (Min. grade aviation  
gasoline) 73 100 91/98 - - 80 
Lubricating oil Lycoming Spec. 
No. 301-G* 
- - - - - - - - 
Bore and stroke, in. 4.875 x 3.875 - - - - - - - - 
Displacement, cu. in. 434 - - - - - - - - 
Compression ratio 6.25:1 7.5:1 - - 7.3:1 6.5:1 
Weight (dry), lb. 347 362 365 405 348 (with -8 mag.) 342 (with -20 mag.) 
      
C.G. location (dry) Fwd. of rear  
mounting face, in. 10.6 - - — 10.9 — 
      
From prop. shaft C.L., in. 0.5 below - - — 0.3 below — 
      
C.G. location (with starter and 
generator)      
Fwd. of rear mounting face, in. 8.9 — 9.6 — 9.6 
Below prop. shaft C.L., in. 0.5 — 0.6 — 0.6 
Propeller shaft, SAE No. 20 20 (See NOTE 5) 20 - - - - 
 
* See latest edition of Lycoming Service Instruction 1014 
Page No. 1 2 3 4 5 6  
Rev. No. 17 17 17 16 16 17

Model   Lycoming (cont'd) O-435 O-435-B O-435-A2 O-435-K, K1 O-435-A 
Carburetion MA-4* MA-4-5* - - - - MA-4-5* 
or PS-5C# 
Ignition, dual SF6LN-8 
Magnetos+ 
SF6LN-8+ or 
Edison-
Splitdorf 
SF6L-D 
SF6LN-8+ - - SF6LN-8+ or 
S6LN-20+ 
Ignition timing, °BTC 25 - - - - - - 20 
Spark plugs See NOTE 12 - - - - - - - - 
Oil sump cap., qts. (wet sump) 12 - - - - - - - - 
Usable oil sump cap., qts. (wet  
  sump) 9-1/4 - - - - - - - - 
      
NOTES 1,2,3,6,7,8, 12 1,2,3,4,5,6,7,8
,12 
1,2,3,6,7,12 1,2,3,4, 6,7,10,12 1,2,3,6,7,12 
      
Model   Lycoming O-435-C1 O-435-C, -C2 GO-435 GO-435-C2, -C2A, 
-C2A2, -C2B,  
-C2B1, -C2B2,  
-C2C, -C2D, -C2E 
GO-435-D1 
Type    6H0A - - - - - - - - 
Reduction gearing ratio Direct Drive - - .642 - - - - 
Rating      
Max. continuous, hp., r.p.m., S.L.  
  pressure altitude 
175-2300-S.L. - - 210-3000-S.L. 240-3000-S.L. or 245-3100-S.L.  - - 
Takeoff, 5 min., hp., r.p.m. at full  
  throttle 
175-2300 - - 210-3000 260-3400 - - 
Fuel (Min. grade aviation  
  gasoline) 
80 
 80 - - (See NOTE 9) - - 
Lubricating oil Lycoming Spec. 
No. 301-G** - - - - - - - - 
Bore and stroke, in. 4.875 x 3.875 - - - - - - - - 
Displacement, cu. in. 434 - - - - - - - - 
Compression ratio 6.25:1 - - - - 7.3:1 - - 
Weight (dry), lb. 366 356 (-C) 
368 (-C2) 
407 438 (C2A) 
432 (C2A2) 
430 (C2B) 
422 (C2, C2C) 
420 (C2D, C2E) 
458 
      
C.G. location (dry) Fwd. of rear  
mounting face, in. 
10.2 10.6 (-C) 
10.2 (-C2) 
11.0 20.0 (C2A) 
19.70 (C2A2) 
19.30 (C2) 
19.4 (C2B, C2C, 
C2D)  
19.08 (C2E) 
8.9 
      
From prop. shaft C.L., in. 0.5 be low - - 0.7 below 0.04 right (C2A, 
C2A2) 
0.41 below (C2A2) 
0.05 left (C2B, 
C2C, C2D) 
0.5 below (C2, 
C2A, C2B, C2C, 
C2D, C2E) 
.03 below 
.13 left 
 
** See latest edition of Lycoming Service Instruction 1014 
*Volare formerly PAC, formerly Marvel-Schebler 
# PAC formerly Bendix  
+ TCM formerly Bendix-Scintilla

Model   Lycoming  
 
 
O-435-C1 
 
 
 
O-435-C, -C2 
 
 
 
GO-435 
GO-435-C2, -C2A, 
-C2A2, -C2B,  
-C2B1, -C2B2,  
-C2C, -C2D, -C2E 
GO-435-D1 
C.G. location (with starter and  
  generator) 
     
Fwd. of rear mounting face, in. 8.9 — — 10.0 (-A2) — 
Below prop. shaft C.L., in. 0.5 — — 0.4 (-A2) — 
Propeller shaft, SAE No. 20 - - - - 20 (See NOTE 5) 20 
Carburetion MA-4* MA-4SPA*   MA-4-5* MA-4-5* or 
 PS-5BD# 
- - 
Ignition, dual SF6LN-8 
Magnetos+ 
 SF6LN-8+ or 
Edison- 
Splitdorf 
SF6LN-8+ or 
S6LN-50+, -51+ or 
S6LN-20+, -21+ 
S6RN-50+,-51+ 
Ignition timing, °BTC 25 - - 25 - - - - 
Spark plugs See NOTE 12 - - - - - - - - 
Oil sump cap., qts. (wet sump) 12 - - - - - - - - 
Usable oil sump cap., qts. (wet  
  sump) 
9-1/4 - - - - - - - - 
      
NOTES 1,2,3,4,6,7,12 1,2,3, 4,6,7,12 1,2,3,4,6,7,8,1
1, 12 
1,2,3,5,6,7,8,9,11, 
12 
1,2,3,7,9,11, 12 
"- -" indicates "same as preceding model" 
"—" indicates "does not apply" 
*Volare formerly PAC, formerly Marvel-Schebler 
#PAC formerly Bendix  
+ TCM formerly Bendix-Scintilla 
 
Certification basis  Date Type Certificate 
 Regulation & Amendments  Model  Date of Application  E-228 Issued/Revised  
 CAR 13 As Amended to November 15, 1940 O-435  February 11, 1942 
  O-435-A July 18, 1941 February 11, 1942 
 CAR 13 Effective August 1, 1941 O-435-B August 25, 1942 October 7, 1943 
  O-435-5 August 25, 1942 October 7, 1943 
  O-435-C December 3, 1942 January 11, 1943 
  O-435-1  January 11, 1943 
  O-435  Canceled February 25, 1944 
  GO-435 August 12, 1944 August 30, 1944 
  O-435-C1 March 14, 1946 January 2, 1948 
  O-435-11 March 14, 1946 January 2, 1948 
  O-435-C2 October 9, 1947 January 2, 1948 
  O-435-13 October 9, 1947 January 2, 1948 
  O-435-A2 January 10, 1949 October 19, 1949 
  GO-435-A2 July 14, 1949 October 19, 1949 
  GO-435-C2 July 14, 1949 October 19, 1949 
  O-435-B  Canceled November 2, 1950 
  GO-435  Canceled November 2, 1950 
 CAR 13 Effective August 1, 1949 GO-435-C2A July 18, 1950 January 2, 1951 
 As Amended By 13-1 O-435-A3 September 28, 1950 January 5, 1951 
  O-435-K January 12, 1951 January 24, 1951 
  O-435-4 January 12, 1951 March 30, 1951 
 13-1 and 13-2 O-435-K1 March 19, 1951 March 30, 1951 
 CAR 13 Effective March 5, 1952 
  GO-435-C2B October 30, 1952 November 6, 1952 
 As Amended By 13-1 GO-435-C2C Se ptember 25, 1953 November 24, 1953 
  GO-435-D1  September 25, 1953 
  O-435-17 December 18, 1953 December 30, 1953 
  GO-435-C2D March 19, 1954 July 20, 1954 
  O-435-A3  Canceled February 8, 1955 
  GO-435-A2  Canceled February 8, 1955

Date Type Certificate 
 Regulation & Amendments  Model  Date of Application  E-228 Issued/Revised  
 As Amended by 13-1 (cont'd) GO-435-C2A  Canceled February 8, 1955 
 13-1 and 13-2 GO-435-C2B1 January 11, 1955 February 8, 1955 
  GO-435-C2A Reinstated July 15, 1955 
  GO-435-C2B2 February 7, 1956 February 28, 1956 
  GO-435-C2C  Canceled July 5, 1956 
  GO-435-C2D  Canceled July 5, 1956 
 CAR 13 Effective June 15, 1956 GO-435- C2E August 22, 1956 September 27, 1956 
 As Amended By 13-1 GO-435-C2A2 October 24, 1957
 November 1, 1957  
 
Production basis Production Certificate No. 3 
 
NOTE 1. Maximum permissible temperatures are as follows: 
 
  Models  Cylinder Head       Cylinder Barrel  Oil Inlet  
   Spark Plug Gasket  Well Type  
   Thermocouple  Thermocouple  
  O-435-B 540°F  515°F    325°F                225°F 
 
  O-435, -A, -A2,  
  -C, -C1, -C2; GO-435         525°F 500°F             325°F 225°F 
 
  GO-435-C2, -C2B,  
  -C2B1, -D1; O-435-A3, 
  -K, -K1, -C2D, -C2A, 
  -C2A2          —  475°F              325°F 225°F 
 
NOTE 2.  
 
 Minimum (p.s.i.)  Maximum (p.s.i.)  
Fuel pressure limits - Marvel carburetor 
Fuel pressure limits - Bendix carburetor 
Oil pressure limits - (Normal operation) 
0.5 
9.0 
60.0 
5.0 
15.0 
85.0 
      
       
       
       
 
NOTE 3. The above models incorporate add itional different characteristics as follows: 
 
 O-435-A  Similar to O-435.  Incorporates  provisions for automotive type accessories. 
 O-435-B  Similar to O-435-A except compression ra tio higher ratings and provisions for AN type 
accessories. 
 O-435-C  Similar to O-435A.  Has provisions for AN type accessories. 
 O-435-C1 Similar to O-435-C.  Has revised type valv es, valve guides, and accessory case with generator and 
starter drive only. 
 O-435-C2 Similar to O-435-C1 except has provisions for O-435-C accessories carburetor.   
 GO-435-C2A2 Similar to GO-435-C2B2 except incorporates a dry sump and does not have provisions for 
hydraulic propeller control or governor. 
 GO-435-C2A Similar to GO-435-C2A2 except incorporates S6LN-20, -21 magnetos. 
 O-435-A2 Similar to O-435-B.  Has redesigned improve d crankcase, cylinders, valves and valve seats, 
exhaust valve guides and rocker shaft bushing.  Also, O-435-A2 has provisions for automotive type 
accessories. 
 O-435-K Similar to O-435-A2 except incorpor ates GO-435-C2 accessory case and crankcase. 
 O-435-K1 Similar to O-435-K except maximum conti nuous rating increased and generator pad omitted. 
 GO-435 Similar to O-435-C.  Incorporates six 3rd order crankshaft torsional vibration dampers and 
reduction gearing. 
 GO-435-C2 Similar to GO-435.  Incorporates  improved crankcase and cylinder assembly.

NOTE 3.  (cont'd) 
 GO-435-C2B Similar to GO-435-C2 except has pr ovisions for hydraulic propeller and governor. 
 GO-435-C2B1 Similar to GO-435-C2B except incorpor ates dual generator and vacuum pump drive. 
 GO-435-C2B2 Similar toGO-435-C2B except incorporates S6LN-20, -21 magnetos. 
 GO-435-C2E Similar to GO-435-C2 except incorporates S6LN-20, -21 magnetos. 
 GO-435-D1 Similar to GO-435-C2B except incorporat es dry sump and crosswise accessory drives. 
 
NOTE 4. Military models O-435-1, O-435-4, O-435-5, O-435-11,  O-435-13, and O-435-17 are identical to the corresponding 
civil designated engines.  When installed in certificated aircraft, the corresponding commercial model designations 
and  type certificate Nos. should be added to the engine data plate. 
 
NOTE 5. Model O-435-B, Serial No. 103-12, incorporates a special  short crankshaft Part No. 66510 with a detachable flanged 
propeller hub, Part No. 66511.  Model GO-435-C2D incorporates a flanged type propeller shaft with 4-7/8" diameter 
flange and 4" diameter bolt circle. 
 
NOTE 6. Deleted.  (Accessories such as generators, fuel pumps, etc., previously listed in NOTE 6 are satisfactory for 
continued use with these engines.  Accessories of these types are not integral engine accessories and therefore are 
not evaluated for approval during engine certification testing.  The airworthiness of such accessories is substantiated 
during aircraft-installation system approval.  The suitability of the accessory to the engine mounting provisions as 
described in NOTE 7 of this data sheet must be determined when processing such approvals.) 
 
NOTE 7. The following accessory drive provisions are available: 
 
 
 
Drive 
 
 
 
O-435-A2 
 
 
 
O-435-
C 
 
 
 
O-435-C1 
 
 
 
O-435-
C2 
 
GO-435-C2A 
GO-435-
C2A2 
O-435-K, -K1 
GO-435-C2 
GO-435-C2B 
GO-435-C2B2 
 
 
GO-435-C2C 
GO-435-C2D 
 
 
GO-435- 
C2B1 
 
 
 
GO-435-D1 
          
Starter X         
Starter  X X X X X  X  
Starter         X 
Generator X         
Generator  X  X      
Generator   X  X X**    
Generator       X   
Generator         X 
Generator        X  
Fuel Pump X         
Fuel Pump  X  X X X X X  
Fuel Pump         X 
Vacuum Pump X         
Vacuum Pump  X  X X X X   
Vacuum Pump         X 
Vacuum Pump        X  
Tachometer X        X 
Tachometer  X X X X X X X  
Hydraulic Pump         X 
Prop. Governor     X  X  X 
Dual Drive:          
  Prop Governor      X  X  
  Vacuum Pump      X  X

Drive 
  
Rotation 
Facing Pad 
 
Drive 
Ratio 
 
Max. Torque 
(in. -lb.) 
Max. Overhang 
Moment 
(in. -lb.) 
    Cont  Static   
Starter  C 13.462:1 - 240 150 
Starter  C 1.000:1 - 3000 80 
Starter   1.000:1 - 12000 300 
Generator  CC 1.857:1 30 65 175 
Generator  CC 1.385:1 175 500 200 
Generator  C 1.250:1 175 500 200 
Generator  C 2.577:1 90 250 200 
Generator  C 2.600:1 500 2200 400 
Generator  C 2.569:1 90 250 200 
Fuel Pump  Plunger Operated .500:1 - - 10 
Fuel Pump  C 1.000:1 50 450 10 
Fuel Pump  CC .803:1 25 450 25 
Vacuum Pump  C 1.292:1 60 175 25 
Vacuum Pump  C 1.333:1 100 800 25 
Vacuum Pump  C 1.219:1 200 800 25 
Vacuum Pump  C 1.250:1 100 800 25 
Tachometer  CC .500:1 7 50 5 
Tachometer  C .500:1 7 50 5 
Hydraulic Pump  C 1.083:1 300 1650 75 
Prop. Governor  C .801:1 125 825 - 
Dual Drive:       
Prop Governor  CC 1.013:1 50 450 25 
Vacuum Pump  CC 1.013:1 50 450 25 
          (Or Total of 100 -C2 & -C2E) 
Also the Hartzell "I" Drive, P/N C192 weighing 3 lbs. is an approved dual drive unit for installation on this drive with the 
following provisions: 
 Vacuum Pump Provision (Optional)   Hydraulic Pump Provision (Optional)  
 Maximum weight, lbs.   4.5  Maximum weight, lbs.  2.4 
 Maximum overhand moment, in.-lbs. 11.2  Maximum overhang moment, in.-lbs. 7.0 
 Maximum continuous torque, in.-lbs. 16.0  Maximum continuous torque, in.-lbs. 17.5 
 
Hartzell Propeller Company, Installation Instruction No. 2 dated May 4, 1951, explains details for accomplishing installation of 
the C192 "T" Drive. 
*C = Clockwise, CC = Counter Clockwise.  **Omitted from -K1. 
 
NOTE 8. Approval of the following models have been canceled.  No engines of the following models manufactured after the 
date shown or with serial numbers higher than those listed below are eligible for use in certificated aircraft: 
 
      Model  Date  Serial No.  
      O-435 2-25-44 493-8 
      O-435-B 11-2-50 157-12 
      GO-435 11-2-50 105-13 
      GO-435-C2C, -C2D 7-5-56  
 
 No engines of the following models ar e in operation in this country: O-435-A3 
       GO-435-A2 
 
NOTE 9. Marvel MA-4-5 carburetor with setting 10-3391-1 may be  used with either 80/87 or 91/98 grade fuel, but with 
setting 10-3391 only 91/98 grade fuel should be used.  Either 80/87 or 91/98 grade fuel may be used with Bendix 
PS-5BD carburetor. 
 
NOTE 10. The O-435-K1 engine has been approve d specifically for helicopter installation. 
 
NOTE 11. The GO-435 series engines incorporate crankshafts with  six 3rd order torsional vibration dampers unless a "-6" 
follows the model designation.  Engines so designated have five 3rd order and one 6th order torsional dampers. 
 
NOTE 12. Spark plugs:  See latest revision of Lycomi ng Service Instruction No. 1042 for approved equipment. 
 
....END....
```

## ADs (11, 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 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012
- [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 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003
- [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991
- [AD 69-25-08](https://openairdocs.org/ad/69-25-08): Reduction Gear Assemblies · Lycoming Engines GO-435-C2A, GO-435-C2A2, GO-480-A1A and 61 more. Effective Feb 19, 1970
- [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 62-23-05](https://openairdocs.org/ad/62-23-05): Propeller Shaft Oil Seal Rings · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 49 more. Effective Nov 14, 1962
- [AD 51-24-01](https://openairdocs.org/ad/51-24-01): Exhaust Valve Seats · Lycoming Engines GO-435-C2 (O-435-17)
- [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 98-18-12](https://openairdocs.org/ad/98-18-12) (historical): Fuel Pump · Textron Lycoming, AVCO AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 249 more. Effective Sep 28, 1998

## Registered aircraft by registry model (OpenAirDocs)

- [Lycoming 0-435](https://openairdocs.org/engine/lycoming-0-435): 87 aircraft (registry code 41516)
- [Lycoming GO-435](https://openairdocs.org/engine/lycoming-go-435): 33 aircraft (registry codes 41520, 42072)
- [Lycoming GO-435-C2A2](https://openairdocs.org/engine/lycoming-go-435-c2a2): 5 aircraft (registry code 42076)
- [Lycoming GO-435-C2B2](https://openairdocs.org/engine/lycoming-go-435-c2b2): 5 aircraft (registry code 42079)
- [Lycoming O-435-C](https://openairdocs.org/engine/lycoming-o-435-c): 5 aircraft (registry code 42070)
- [Lycoming 0-435B](https://openairdocs.org/engine/lycoming-0-435b): 3 aircraft (registry code 41519)
- [Lycoming GO-435-C2](https://openairdocs.org/engine/lycoming-go-435-c2): 2 aircraft (registry code 42074)
- [Lycoming GO-435-C2A](https://openairdocs.org/engine/lycoming-go-435-c2a): 2 aircraft (registry code 42075)
- [Lycoming GO-435-C2B](https://openairdocs.org/engine/lycoming-go-435-c2b): 1 aircraft (registry code 42077)
- [Lycoming O-435](https://openairdocs.org/engine/lycoming-o-435): 1 aircraft (registry code 42063)
- [Lycoming GO-435-C2B1](https://openairdocs.org/engine/lycoming-go-435-c2b1): 0 aircraft (registry code 42078)
- [Lycoming GO-435-C2C](https://openairdocs.org/engine/lycoming-go-435-c2c): 0 aircraft (registry code 42080)
- [Lycoming GO-435-C2D](https://openairdocs.org/engine/lycoming-go-435-c2d): 0 aircraft (registry code 42081)
- [Lycoming GO-435-C2E](https://openairdocs.org/engine/lycoming-go-435-c2e): 0 aircraft (registry code 42082)
- [Lycoming GO-435-D1](https://openairdocs.org/engine/lycoming-go-435-d1): 0 aircraft (registry code 42073)
- [Lycoming O-435-A](https://openairdocs.org/engine/lycoming-o-435-a): 0 aircraft (registry code 42068)
- [Lycoming O-435-A2](https://openairdocs.org/engine/lycoming-o-435-a2): 0 aircraft (registry code 42065)
- [Lycoming O-435-B](https://openairdocs.org/engine/lycoming-o-435-b): 0 aircraft (registry code 42064)
- [Lycoming O-435-C1](https://openairdocs.org/engine/lycoming-o-435-c1): 0 aircraft (registry code 42069)
- [Lycoming O-435-C2](https://openairdocs.org/engine/lycoming-o-435-c2): 0 aircraft (registry code 42071)
- [Lycoming O-435-K](https://openairdocs.org/engine/lycoming-o-435-k): 0 aircraft (registry code 42066)
- [Lycoming O-435-K1](https://openairdocs.org/engine/lycoming-o-435-k1): 0 aircraft (registry code 42067)

## STCs approved under this data sheet (27)

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines.. B & C Specialty Products Inc.
- [STC SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.. Alcor LLC
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal.. Ly-Con Rebuilding Company
- [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 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 SE4493NM](https://openairdocs.org/stc/SE4493NM): Installation of oil filter adapter and oil filter.. Airwolf Filter Corporation
- [STC SE7507SW](https://openairdocs.org/stc/SE7507SW): Installation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision.. Continental Motors, Inc.
- [STC SE7664SW](https://openairdocs.org/stc/SE7664SW): Installation of parts listed on Airmotive Engineering Drawing List No. 8810-3, Revision No. 6, dated 11/3/89, or later FAA approved revision.. Continental Motors, Inc.
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings.. Continental Motors, Inc.
- [STC SE2902NM](https://openairdocs.org/stc/SE2902NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE02436AT](https://openairdocs.org/stc/SE02436AT): Installation of 200F series fuel pump assembly.. Kelly Aerospace Energy Systems LLC
- [STC SE914NW](https://openairdocs.org/stc/SE914NW): Installation of a propeller governor adapter with a combination adapter/valve to provide propeller reversing control.. McHugh Aviation Inc
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co 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 SE579SO](https://openairdocs.org/stc/SE579SO): Installation of Bendix magneto models S6LN-20 and S6LN-21.. Mack's Aircraft Engine Svc
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co
- [STC SE2278CE](https://openairdocs.org/stc/SE2278CE): Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index, (RON+MON)/2. Intermixing with aviation gasoline also approved.. Petersen Aviation Inc
- [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 SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines.. ProTec
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.. AMS/OIL
- [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines.. Kling Oil Company

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.