# STC SA4320NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Timberman Allen E, United States
- Description: Installation of an oil filter, filter base and mounting plate on the firewalls of those airplanes listed on AML No. SA4320NM that are equipped with an FAA approved Continental Model IO-520 engine installation which has been modified by the installation of an external mounted full flow oil adapter and spin-on oil filter
- Applied: March 31, 1988
- Status date: July 30, 1993
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A9CE](https://openairdocs.org/tcds/A9CE), [TCDS A4CE](https://openairdocs.org/tcds/A4CE), [TCDS A16CE](https://openairdocs.org/tcds/A16CE), [TCDS 3A21](https://openairdocs.org/tcds/3A21), [TCDS 3A24](https://openairdocs.org/tcds/3A24)
- Certificate PDF: https://openairdocs.org/files/sha256/6b/86/6b86230bbdbcfc5675d947ec7caa4401a676f010a918c8e87a08e79811c37809
- Approved model list and other attachments: [AML SA4320NM.pdf](https://openairdocs.org/files/sha256/f1/5f/f15fccf2b8387e3096208be8f2070fd39ed98520790b4660b7c30f11d6718910)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C38082CF85F05B1985256CC2000E3B92.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4320NM

## ADs that name it (0)

None.

## Approved models (33)

- Cessna Aircraft Company 188 ([TCDS A9CE](https://openairdocs.org/tcds/A9CE))
- Cessna Aircraft Company 188A ([TCDS A9CE](https://openairdocs.org/tcds/A9CE))
- Cessna Aircraft Company 188B ([TCDS A9CE](https://openairdocs.org/tcds/A9CE))
- Cessna Aircraft Company 206 ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company 207 ([TCDS A16CE](https://openairdocs.org/tcds/A16CE))
- Cessna Aircraft Company 207A ([TCDS A16CE](https://openairdocs.org/tcds/A16CE))
- Cessna Aircraft Company 210D ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210E ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210K ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210R ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company A185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company A185F ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company P206 ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company P206A ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company P206B ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company P206C ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company P206D ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company P206E ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206 ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206A ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206B ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206C ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206D ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206E ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206F ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206G ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))

## 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: SA4320NM This certificate issued to: Allen E. Timberman Purt * of the * Regulations.

Original Product -Iyperbertificate Number: *See Attached Approved Model List (AML) Мако: No. SA4320NM for list of approved airplane Model: models and applicable airworthiness regulations.

Description of Type Design Change: Installation of an oil filter, filter base, and mounting plate on the firewalls of those airplanes listed on AML No. SA4320NM that are equipped with an FAA approved Continental Model IO-520 engine installation which has been modified by the installation of an external mounted full flow oil adapter and spin-on oil filter in accordance with STC No. SE4314NM and Timberman Installation Instructions No. AT-2-I0-470-II, revised March 30, 1988, or later FAA Approved revision.

Limilalions and bindiliond: Approval of this change in type design applies to the aircraft models listed on AML No. SA4320NM only. This approval should not be extended to aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of rendered, suspended, revoked, or a lermination date is stherwise es tablished by the Admin is traler of tho Federal Aviation Administration .

Date of Application: March 31, 1988 Jute missed: July 30, 1993 Date of Issuance: September 21, 1988 Late unvended: July 30, 1993 FEDERAL AVIATIO fine of lo ¿Sid rinistrater Manager, Speciaf certification Branch TOMINIST RAID Seattle Aircraft Certification Office (Title) 47 FAA FoRM 8110-2 (10-68)

### AML SA4320NM.pdf

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

045 IBaue Date: September 21, 1988 AML AMENDMENT DATE efer to Note "B" of Installation Instructions No. AT-2-I0-470-II, revised March 30, 1988 (or later FAA approved revision), or oil hose line and fitting specifications. Those airplanes or powerplant installations approved under a certification asis dated on or after August 12, 1957 (Amendment 3-2 of CAR 3, dated 5/15/56), must be equipped with fire resiatant o11 Allen t. 11mberman 21560 S. Highway 2'- Oregon City, Oreg ENGINE MODELS IO-520-D IO-520-D IO-520-D IO-520-D IO-520-A, D, F IO-520-F....

FAL APPROVED HODEL L. (AHL) NO. SA4320MM INSTALLATION OF OIL FILTER, FILTER BASE, AND MOUNTING PLATE ON FIREWALL *OIL HOSES ELIGIBILITY AE 701 303 × × × × × FOR CERTIFICATION BASIS FOR ALTERATION CAR 3, (Normal), Dated 15/15/56 and Amendments 3-1 thru 3-5 FAR 21, (Restricted), Dated 2/1/65 |FAR 21, (Restricted), /Dated 2/1/65 ¡FAR 23, (Normal), Inated 2/1/65 CAR 3, Dated 5/15/56 and Amendments 3-1 thru 3-8 FAR 23, Dated 2/1/65 and Amendments 23-1 thru 23-6 Page 1 of 2 ORIGINAL TYPE CERTIFICATE NUMBER 3124 49 CE A4 CE 116CE AIRCRAFT AIRCRAFT MODEL MAKE A185E, CESSNA A185F A188, 4, B 206, P206, A, B, C, D, E, U206, A, B, C, D, E, F, G 1207, 1 oses and fittings.

'EM

97045 IBue Date: September 21, 1988 AML AMENDMENT DATE Refer to Note "B" of Installation Instructions No. AT-2-I0-470-II, revised March 30, 1988 (or later FAA approved revision) for oil hose line and fitting specifications. Those airplanes or powerplant installations approved under a certification basis dated on or after August 12, 1957 (Amendment 3-2 of CAR 3, dated 5/15/56), must be equipped with fire resistant o11 Manager, Spedial Certification Branch Seattle Aircraft Certification Office 21560 S. Highway 213 Oregon City. Ore ENGINE MODELS IO-520-A, J, L T (AML) NO. SA4320NH INSTALLATION OF OIL FILTER, FILTER BASE, AND MOUNTING PLATE ON FIREWALL *OIL HOSES ELIGIBILITY 43701 303 FAA Approved: July 30, 978 Revision Date:

FAA APPROVED MODEL FOR CERTIFICATION BASIS FOR ALTERATION CAR 3, Dated 5/15/56 Page 2 of 2 ORIGINAL TYPE CERTIFICATE NUMBER 3121 AIRCRAFT AIRCRAFT MODEL MAKE 210D, E, F, CESSNA (continued) |G, H, J, K, IL, M. N, R hoses and fittings.

**ITEM -**

## Every issue (1)

- July 30, 1993: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6b/86/6b86230bbdbcfc5675d947ec7caa4401a676f010a918c8e87a08e79811c37809), [AML SA4320NM.pdf](https://openairdocs.org/files/sha256/f1/5f/f15fccf2b8387e3096208be8f2070fd39ed98520790b4660b7c30f11d6718910)

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