# STC SA2128CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Petersen Aviation Inc, United States
- Description: Operation of airplane on unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved.
- Status date: February 12, 2020
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-767](https://openairdocs.org/tcds/A-767), [TCDS A-787](https://openairdocs.org/tcds/A-787)
- Certificate PDF: https://openairdocs.org/files/sha256/8c/e8/8ce8920cd6bd8384f7d21eb3f33ffc6b4e9e93fac08c7199758343979b3a9d1b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7D3F5FE52D309A9C8625851800585AA2.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2128CE

## ADs that name it (0)

None.

## Approved models (4)

- Univair Aircraft Corporation 108 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation 108-1 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation 108-3 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation E ([TCDS A-787](https://openairdocs.org/tcds/A-787))

## 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property oft h eS T C holder.

FAA Form 8110-2 (5/14) Page 1 of This certificate issued to:

Part of the

Signature

Title Petersen Aviation, Inc.

984 K Road Minden, NE 68959 3 SA2128CE Civil Air Regulations.3 Operation of airplane on unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON + MON)/2 per ASTM specification D-439 and/or D-4814 for 165 HP or less, unless otherwise authorized by certificated (original, STC or Field Approval) engine installations. Operation of airplane on unleaded automotive gasoline, 91 minimum antiknock index (RON + MON)/2 per ASTM specification D-439.

Intermixing with aviation gasoline also approved. (Continued on page 3).

Stinson 108, 108-1, 108-2, 108-3

1. Limited to those airplanes equipped with gravity fuel feed to the carburetor and certified (original or STC) or Field Approval engine installations.

2. Limited to those airplanes certified (original, STC or Field Approval) with minimum 1/2 in OD fuel plumbing for engines rated in excess of 165 HP. (Continued on page 3).

February 12, 2020 June 23, 1992 June 7, 1985 June 25, 1985 A-767 Charles Riddle Associate ACO Manager, AIR-7K2 Wichita ACO Branch

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property oft h eS T C holder.

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

To (Name and address of transferee) From (Name and address of grantor) Extent of Authority (if licensing agreement):

3 SA2128CE

The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property oft h eS T C holder.

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

3 Date amended: June 23, 1992 Date reissued: February 12, 2020

Description of Type Design Change (continued from page 1):

Data required: 1. Petersen Drawing No. 97212 Rev (-), dated June 23, 1985, or later FAA Approved revision, and

2. Airplane Flight Manual Supplement No. 1 Rev (-), dated June 23, 1985, or later FAA Approved revision.

Limitations and Conditions (continued from page 1):

3. All engines must have separate approval for operation on automotive gasoline in the form of a STC or TC approval.

4. For installations utilizing the Lycoming 0-360 engines, the engine STC, SE2563CE, must be previously installed.

5. This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated, unless determined that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

---- END --- SA2128CE

## Every issue (1)

- February 12, 2020: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8c/e8/8ce8920cd6bd8384f7d21eb3f33ffc6b4e9e93fac08c7199758343979b3a9d1b)

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