STC SA3523WE

Supplemental type certificate · Airwolf Filter Corporation

Holder
Airwolf Filter Corporation · United States
Status
Current · Reissued
Status date
December 20, 2017
Applied
September 9, 1977
Product
Aircraft · Single-Engine
Certification basis
Part 21
Data sheet
TCDS3A15

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

What it approves

Installation of an airfoil separator in the engine breather 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.

3* Civil Air

*Certification basis is set forth on Type Certificate Data Sheet 3A15, Revision 58

Installation of an air/oil separator in the engine breather system in accordance with FAA-sealed Walker Engineering Company Master Drawing List No. DLW-3000, Revision “C”, dated October 25, 1977, or later FAA-approved revisions.

The approval of this change in type design applies basically to the above listed models only. This approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of the above listed airplanes. A copy of this STC must be included in the permanent records of the modified aircraft. 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 3A15 Beech H35, J35, K35, M35, N35, P35, 35-33, 35-A33 35-B33 and 35-C33 September 9, 1977

November 25, 1977

September 28, 2001; December 20, 2017

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

(Title)

Original signed by:

Roy E. Boffo

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 · 10

MakeModelData sheet
Raytheon Aircraft Company35-333A15
Raytheon Aircraft Company35-A333A15
Raytheon Aircraft Company35-B333A15
Raytheon Aircraft Company35-C333A15
Raytheon Aircraft CompanyH353A15
Raytheon Aircraft CompanyJ353A15
Raytheon Aircraft CompanyK353A15
Raytheon Aircraft CompanyM353A15
Raytheon Aircraft CompanyN353A15
Raytheon Aircraft CompanyP353A15