# STC SA2611CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petersen Aviation Inc, United States
- Description: Operation on unleaded automotive gasoline.
- Applied: April 16, 1990
- Status date: April 17, 1990
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A17SW](https://openairdocs.org/tcds/A17SW)
- Certificate PDF: https://openairdocs.org/files/sha256/b8/fa/b8fa55525f9efe84645d25611a03c636f1b0d516dc3fb60f8ccdd453f83962f8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7C1CAE4EB1BCFBDC85256CC20008C66E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2611CE

## ADs that name it (0)

None.

## Approved models (1)

- Air Tractor Inc. AT-501 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA2611CE This certificate issued to: Petersen Aviation, Inc.

Route 1, Box 18 Minden, Nebraska 68959 Purt 21 of thFederal Aviation Regulations.

Original Product -Typebertificate Number: A17SW Make: Air Tractor Model: AT-501 Description of Type Design Change: Operation of airplane on unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON + MON)/? per ASTM Specification D-439. Intermixing with aviation gasoline also approved. Data Required: A copy of this certificate. Petersen Drawing 501 dated April 16, 1990, or later "FAA Approved" revision.

Limitations and Conditions: Limited to those airplanes equipped with the P&W R-1340-() series engines modified in accordance with STC SE1864CE. This approval should not be extended to other airplanes of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of those airplanes.

Datesfuppliculion: Apr11 16, 1990 Date Reissued:

Date of Issuance: April 17, 1990 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Original Signed By Lawren ena. He Propanager Wichita Aircraft Certification Office (Title)

47.

## Every issue (1)

- April 17, 1990: Issued, Current. [certificate](https://openairdocs.org/files/sha256/b8/fa/b8fa55525f9efe84645d25611a03c636f1b0d516dc3fb60f8ccdd453f83962f8)

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