STC SA903GL

Supplemental type certificate · Airwolf Filter Corp

Holder
Airwolf Filter Corp · United States
Status
Current · Reissued
Status date
May 1, 2018
Applied
May 28, 1985
Product
Aircraft · Single-Engine
Certification basis
Part 21
Data sheet
TCDSA3SW

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.

What it approves

Installation of a spin-off filter assembly in the engine scavenge oil system.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

Installation of Model 400 scavenge oil filter kit in the engine scavenge oil system per Sky-Tractor Supply drawing list Report No.

400, rev. C, dated December 28, 2004, and Installation Instructions, rev. C, dated December 28, 2004, or later FAA approved revisions.

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

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

3. A copy of this Certificate and FAA Approved Model List (AML) No. SA903GL, amended February 4, 2005, or later FAA approved revision, must be maintained as part of the permanent records for the modified aircraft.

Airwolf Filter Corp.

12801 Hwy 75 North Okmulgee, OK 74447

* See attached FAA Approved Model List (AML) No. SA903GL for list of approved airplane models and applicable airworthiness regulations.

August 25, 1987; March 9, 2018;

May 1, 2018

February 6, 2004; February 4, 2005

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

(Title)

May 28, 1985

June 18, 1985

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 1

MakeModelData sheet
Ayres CorporationS2RA3SW

Every issue · 2

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
May 1, 2018Reissued, currentCertificate
March 9, 2018Reissued, earlier issueCertificate