# STC SA708GL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Airwolf Filter Corp, United States
- Description: To install model 300 scavenge oil filter system with Pratt & Whitney R-1340 engine.
- Applied: July 29, 1983
- Status date: May 1, 2018
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-2-575](https://openairdocs.org/tcds/A-2-575)
- Certificate PDF: https://openairdocs.org/files/sha256/79/3c/793cef62a8fcd0a9c977d244f3ccd3970400ece19c912d7d3456723a59f23c52
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5EAF17CC4EF42E988625829F004B0898.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA708GL

## ADs that name it (0)

None.

## Approved models (8)

- Rockwell International Corporation AT-6 (SNJ-2) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6A (SNJ-3) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6B ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6C (SNJ-4) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6D (SNJ-5) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6F (SNJ-6) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation AT-6F (SNJ-7) ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))
- Rockwell International Corporation T-6G ([TCDS A-2-575](https://openairdocs.org/tcds/A-2-575))

## 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.

4a Civil Air (See Type Certificate Data Sheet No. A-2-575 for complete certification basis)

Install Sky-Tractor Supply Co. Model 300 scavenge oil filter system in specified aircraft with Pratt & Whitney R1340 engine in accordance with Sky-Tractor Supply Co. drawing list dated October 20, 1999, and Installation Instructions revision B, dated March 16, 1994, or later FAA approved revisions.

1. Compatibility of this design change with previously approved modifications must be determined by the installer.

2. A copy of this certificate must be maintained as part of the permanent records for the modified aircraft.

3. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Airwolf Filter Corp.

12801 Hwy 75 North Okmulgee, OK 74447

A-2-575 Rockwell International (North American) AT-6 (SNJ-2), AT-6A (SNJ-3), AT-6B, AT-6C (SNJ-4), AT-6D (SNJ-5), AT-6F (SNJ-6, SNJ-7), T-6G July 29, 1983

September 23, 1983

August 25, 1987; March 9, 2018;

May 1, 2018

November 18, 1999; December 13, 1999

(Signature) Roy E. Boffo Manager, Propulsion and Project Management Section Chicago ACO Branch

(Title)

## Every issue (2)

- May 1, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/79/3c/793cef62a8fcd0a9c977d244f3ccd3970400ece19c912d7d3456723a59f23c52)
- March 9, 2018: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/50/19/50193278e831ae1b7c6cb1d2567875517d244d26abf0815a159518bddbf28b77)

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