# TCDS E18EA: Franklin Sp. z.o.o.

- Type: Type certificate data sheet
- Status: Current
- Holder: Franklin Sp. z.o.o.
- Revision: 6
- Revised: April 30, 2013
- Product: Engine
- Certification basis: Part 21, Part 33
- Data sheet PDF: https://openairdocs.org/files/sha256/a1/d5/a1d572a4597f172e57ca724f47a97b3d6b76ad4377a3e4c7748a5345fdf0b6ec
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F1B4FCE8BD367DC386257BAB0062A078.0001
- Page: https://openairdocs.org/tcds/E18EA

## Models (2)

As the data sheet lists them.

- 6AS-350-A1
- 6AS-350-A

## 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  1  2  3  4     
 REV.  5  5  4  4    
  LEGEND:  "- -" INDICATES "SAME AS PRECEDING MODEL" 
                "---" INDICATES "DOES NOT APPLY" 
 NOTICE:   ALL PAGES ARE REFORMATTED.  SIGNIFICANT CHANGES, IF ANY, 
                ARE BLACK-LINED IN THE LEFT MARGIN. 
                
 
 
 
 
 
U.S. DEPARTMENT OF TRANSPORTATION 
 
FEDERAL AVIATION ADMINISTRATION  
 
TYPE CERTIFICATE DATA SHEET E18EA 
TCDS NUMBER E18EA 
 
REVISION: 6* 
DATE:  April 30, 2013   
 
Franklin Sp. z.o.o. 
 
MODELS: 
 
FRANKLIN 
  6AS-350-A    
  6AS-350-A1 
Engines  of models described herein conforming with this data sheet (which is part of Type Certificate Number E18EA) 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 Federal Aviation Regulations, provided they are installed, 
operated, and maintained as prescribed by the approved manufacturer's manuals and other approved instructions. 
 
TYPE CERTIFICATE (TC) HOLDER   Franklin Sp. z.o.o. 
      Ul. Chelmińska 208 
      86-300 Grudziądz 
      Poland 
     
TYPE CERTIFICATE (TC) HOLDER RECORD WSK-PZL-RZESZOW transferred TC E18EA to Franklin Sp. z.o.o. 
on August 17, 2006     
 
I. MODELS 6AS-350-A 6AS-350-A1  
TYPE 6HOA Horizontally-Mounted Direct Drive Turbosupercharged 
RATINGS  
 
  Maximum Continuous 
   hp, r.p.m., in. Hg. at: 
     Critical pressure altitude, ft. 
     Sea level pressure altitude 
 
  Takeoff (5 min.) 
   hp, r.p.m., in. Hg. at: 
     Critical pressure altitude, ft. 
     Sea level pressure altitude    
 
 
 
 
235-2800-38.0-15,000 
235-2800-39.2-S.L. 
 
 
 
250-2800-41.3-12,500 
250-2800-42.0-S.L. 
 
 
 
 
- - 
- - 
 
 
 
- - 
- - 
 
FUEL  
 
  Minimum grade aviation gasoline 
 
 
100/130 
 
 
- - 
 
 
 
 LUBRICATING OIL 
  (Engine and Turbo) 
MIL-L-6082 or 
MIL-L-22851 
- -  
OIL GRADE 
  above 40 o F ambient air temp. 
  below 40 o F ambient air temp. 
 
SAE 50 
SAE 30 
 
- - 
- -

TCDS E18EA            PAGE 2 
 
I. MODELS (Continued) 6AS-350-A 6AS-350-A1  
 COMPRESSION 
   Bore and stroke, in. 
   Displacement, cu. in. 
   Compression ratio 
 
 
4.625 x 3.5 
350 
7.4:1 
 
- - 
- - 
- - 
 
WEIGHT  (DRY) (lb) 
   
376.85 - -  
CENTER OF GRAVITY (in) 
 (with all accessories) 
  
   Forward  from rear face of  
   crankcase 
 
   Above C.L. of crankshaft 
 
 
 
 
6.31 
 
 
0.81 
 
 
 
 
6.81 
 
 
- - 
 
 
PROPELLER SHAFT SAE ARP 502,  
six 1/2 in. bolts on 4 in. 
circle 
- -  
CARBURETION Marvel-Schebler  
MA-5 
- -  
TURBOSUPERCHARGER AiResearch TE 0657 - -  
IGNITION Bendix S6RN-1227 - -  
TIMING, o BTC 25   
SPARK PLUGS AC 273 or Champion 
RHB32E 
- -  
OIL SUMP CAPACITY, QT. 8.8 - -  
USEABLE OIL, QT. 
   (starting with full tank) 
 15 o nose down 
 20o nose up 
 
 
6.8 
5.8 
 
 
- - 
- - 
 
NOTES 1-6, 8 1-8  
 
CERTIFICATION BASIS 
 
FAR 33, effective February 1, 1965, as amended by 33-1. 
 
Type Certificate E18EA issued/revised: 
 
 
  Date of        Date TC  
Model       Application  Issued/Revised                
 
6AS-350-A      06/27/66   07/19/68 
6AS-350-A1    11/22/68   12/05/68 
Reissued to PEZETEL   08/01/79 
Reissued to WSK "PZL-RZESZOW"  11/05/81 
Reissued to WSK "PZL-RZESZOW" SA                  12/8/94 
Reissued to Franklin Sp. z.o.o.                                   04/30/13                                      
 
The General Inspectorate of Civil Aviation of Poland originally type certificated this engine. 
The FAA validated this product under U.S. Type Certificate Number E18EA. Effective 
September 28, 2003, the European Aviation Safety Agency (EASA) began oversight of this 
product on behalf of Poland. 
 
PRODUCTION BASIS 1. Production Certificate No. 9 for U.S. production.  There will be no further production of 
engines or replacement parts under this production certificate. 
 
2. FAR 21.500 for production of engines or replacement parts under this type certificate by 
WSK "PZL-RZESZOW" SA under control of the Republic of Poland General Inspectorate 
of Civil Aviation (GICA). 
 
 Parts produced under either production basis are eligible to be used interchangeably.

TCDS E18EA            PAGE 3 
 
IMPORT REQUIREMENTS To be considered eligible for installation on U.S. registered aircraft, each new engine to be 
exported to the United States with the General Inspectorate of Civil Aviation of Poland or 
EASA airworthiness approval shall have a Joint Aviation Authorities (JAA) or EASA Form 
1, Authorized Release Certificate.  The JAA or EASA Form 1 should state that the engine 
conforms to the type design approved under the U.S. Type Certificate E18EA, is in a 
condition for safe operation and has undergone a final operational check. 
 
Additional guidance is contained in FAA Advisory Circular 21-23, Airworthiness 
Certification of Civil Aircraft, Engines, Propellers, and Related Products, imported into the 
United States. 
  
 
 
NOTES 
 
NOTE 1. Maximum permissible temperatures (o F): 
 
Cylinder head  400 (bayonet thermocouple)    
Cylinder base  320 
Oil inlet   250 
Carburetor inlet air 225 
 
NOTE 2. Fuel pressure limits: 
 
    Max  Min 
  
   Inlet to fuel pump   14 p.s.i.  10 p.s.i. 
    
Oil pressure limits: 
 
     Idle      - -  25 p.s.i. 
     Normal operation   - -  55-80 p.s.i.  
     
NOTE 3. The following accessory drives are provided: 
 
  
 
 
 
 
ACCESSORY 
 
 
 
 
Type of 
Drive Pad 
 
 
 
 
Rotation Facing 
Drive Pad 
 
 
 
Speed Ratio to 
Crankshaft 
 
 
 
Max. Torque 
(in.  lb.) 
Cont.    Static 
 
 
 
Maximum 
Overhang 
in.  lb. 
 
Starter 
 
Alternator 
 
Tachometer 
 
Fuel Pump 
 
Propeller Governor 
 
Vacuum Pump 
 
Special 
 
Belt 
 
AND 10005 
 
AND 20000 
 
AND 20010 
 
AND 20000 
 
CC 
 
CC 
 
CC 
 
CC 
 
CC 
 
C 
 
11.44:1 
 
1.6:1 
 
0.5:1 
 
1.65:1 
 
0.847:1 
 
0.847:1 
 
140
 
100 
 
7 
 
100 
 
125 
 
125 
 
450 
 
800 
 
50 
 
800 
 
825 
 
825 
 
90 
 
--- 
 
5 
 
30 
 
25 
 
25 
"C" - clockwise facing engine drive shaft,  "CC" - counter clockwise facing engine drive pad 
  Yes   
NOTE 4. This engine is equipped with an AiResearch model TE 0657 turbosupercharger, which meets the 
containment requirements of FAR 33.27 and does not require external protection.

TCDS E18EA            PAGE 4 
NOTE 5. Performance data on this engine are presented in Franklin Curve Nos. PE4283 through PE4286 and 
PE4298. 
 
NOTE 6. Power tolerance for production engines is +4%, -3% of the nominal rating. 
 
NOTE 7. The 6AS-350-A1 incorporates a geared starter which is located over the crankcase. 
 
 
NOTE 8. SERVICE INFORMATION:  
Each of the documents listed below must state that it is approved by the European Aviation Safety 
Agency (EASA) or, for approvals made before September 28, 2003 by the General Inspectorate of 
Civil Aviation of Poland. Any such documents including those approved under a delegated authority, 
are accepted by the FAA and are considered FAA approved.  
• Service bulletins,  
• Structural repair manuals,  
• Vendor manuals,  
• Aircraft flight manuals, and  
• Overhaul and maintenance manuals. 
These approvals pertain to the type design only. 
 
---THE END---
```

## ADs

None name its models.

## STCs approved under this data sheet (7)

- [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 SE1311SO](https://openairdocs.org/stc/SE1311SO): Installation of Shivers carburetor temperature gauge with a Richter Aero Equipment B-5 carburetor temperature probe.. LegacySTC.com
- [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 SE4178NM](https://openairdocs.org/stc/SE4178NM): Installation of oil filter kit. Franklin Aircraft Engines Inc.
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings.. Continental Motors, Inc.
- [STC SE3331NM](https://openairdocs.org/stc/SE3331NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [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

---
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.
