# STC SE26WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Continental Motors, Inc., United States
- Description: Piston ring 250000, 250000+2W and250000+10W on Continental E Series piston 534895, O-470 piston 534895, 626992 and 537883 and IO-470 piston534895.
- Applied: January 10, 1966
- Status date: October 31, 2016
- Product: Engine
- Certification basis: Part 13, Part 21
- Data sheets: [TCDS 3E1](https://openairdocs.org/tcds/3E1), [TCDS 3E3](https://openairdocs.org/tcds/3E3), [TCDS E-269](https://openairdocs.org/tcds/E-269), [TCDS E-273](https://openairdocs.org/tcds/E-273)
- Certificate PDF: https://openairdocs.org/files/sha256/71/1e/711e57bbeb50ef3fdc0448f3a11351a46047456daa05714110427b732725ae1c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8C88C1AC42947AD5862580CE0074D908.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE26WE

## ADs that name it (0)

None.

## Approved models (5)

- Teledyne Continental Motors IO-470 Series ([TCDS 3E1](https://openairdocs.org/tcds/3E1))
- Teledyne Continental Motors IO-470 Series ([TCDS E-273](https://openairdocs.org/tcds/E-273))
- Teledyne Continental Motors O-470 Series ([TCDS E-269](https://openairdocs.org/tcds/E-269))
- Teledyne Continental Motors O-470 Series ([TCDS E-273](https://openairdocs.org/tcds/E-273))
- Teledyne Continental Motors TSIO-470 Series ([TCDS 3E3](https://openairdocs.org/tcds/3E3))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA Form 8110-2 (5/14) Page 1 of 3

Number: SE26WE

Part 13 of the Civil Air Regulations

Original Product – Type Certificate Number: 269, 273, 3E1, 3E3 Make: Continental Motors Inc.

Model: See Limitations and Conditions Description of Type Design Change:

Installation of Electro-Coatings piston ring 250000, 250000+2W, and 250000+10W on Continental E Series piston 534895, 0-470 piston 534895, 626992, and 527883, and IO-470 piston 534895. Piston ring 250000+10W fits pistons 534895, 626992, and 537883 regrooved in accordance with EC1 specifications and drawings 534895-EC1-PG10, 626992-EC1PG10 and 537883-EC1-PG10 dated January 10, 1966. Installation of Electro-Coatings piston ring 250001, 250001+2W, and 250001+10W on Continental O-470 and IO-470 piston 539814, IO-470 piston 627738 and TSIO-470 piston 629185. Piston ring 250001+10W fits pistons 539814, 627738 and 629185 regrooved in accordance with specifications and drawings 539814-EC1-PG10, 627738-EC1-PG10 and 629185-EC1-PG10 dated January 10, 1966.

Date of Application: January 10, 1966 Date Reissued: 08/27/07; 07/20/15; 01/25/16; 10/31/16 Date of Issuance: September 23, 1965 Date Amended: 01/17/66; 06/10/69; 12/20/82 Revision 3

Signature

Title James A. Grigg Acting Manager, Fort Worth Aircraft Certification Office, Southwest Region Continental Motors Inc.

2039 S. Broad St.

Mobile, AL 36615

FAA Form 8110-2 (5/14) Page 2 of 3

Transfer the ownership of Supplemental Type Certificate Number: SE26WE

To (Name and address of transferee)

From (Name and address of grantor)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SE26WE

FAA Form 8110-2 (5/14) Page 3 of 3

Date of Issuance: September 23, 1966 Date Amended: December 20, 1982 Date of Reissuance: October 31, 2016

Type Certificate 269: O-470-4, -11, -11B, -C1, -11B-C1, -13, -13A, -15.

Type Certificate 273: O-470-A, -B, -E, -G, -H, -J, -K, -L, -M, -N, -P, -R;

O-470-B-C1, -G-C1, -K-C1, -L-C1, -M-C1; IO-470-A, -C.

Type Certificate 3E1: IO-470-D, -E, -F, -G, -H, -J, -K, -L, -LO, -M, -N, -P, -R, -S, -T, -U, -V, -VO, LIO-470-A.

Type Certificate 3E3: TSIO-470-B, TSIO-470-C, TSIO-470-D.

The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

-END-

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SE26WE

FAA Form 8110-2 (5/14) Page 4 of 3

## Every issue (1)

- October 31, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/71/1e/711e57bbeb50ef3fdc0448f3a11351a46047456daa05714110427b732725ae1c)

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