STC SA4321NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA4321NM This certificate issued to: AlTen E. Timberman Purt * of the * Regulations:

Original Product -Typeberlificate Number: *See Attached Approved Model List (AML) Make: No. SA4321NM for list of approved airplane Model: models and applicable airworthiness regulations.

ein airse airpales listed on that quippin Installation of an oil filter, filter base and mounting with an FAA Approved Continental Model I0-470 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. SE3517NM and Timberman Installation Instructions No. AT-2-10-470-II, revised March 30, 1988, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the aircraft models listed on AML No. SA4321NM, 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 this Certificate and AML No. SA4321NM, dated September 16, 1988, or later FAA Approved revision must be maintained as part of the permanent records of the modified aircraft.