STC SE3375NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SE3375NM This certificate issued to: AlTen E. Timberman Certifies that the change in the type design for the following product with the limitations and condilions therefor as specifed hereon meets the aireenthiness reguirements of Perl 13 of the CiVil Air Regulations.

Original Product - Type Certificates Number: E-267 Make: Continental Model: E-225-4 and E-225-8 Kep acement of the original engine oil screen with ar sealed copies of Timberman Master Drawing List No. Al-1-185-DL, dated March 29, 1988, and installation Instructions No. AT-1-185-11, revised February 24, 1988, or later FAA Approved revisions, or 2) Drawing List No. AT-1E-185-DL, revised April 11, 1992, anc installation instructions No. Al-1E-185-11-1, revised December 21, 1990, or later FAA Approved revisions.

timilationsandbindilions: Approval of this change in type design applies to those basic Continental E-225-8 model engines which are equipped with Continental Oil Check Valve P/N A25132 and to basic E-225-4 engines. This approval should not be extended to other engines of this model on which 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 these engines. (See Continuation Timberman Limitations and Conditions: of Type Certificate Data Sheet Number E-267 for Continental Models E-225-4 and E-225-8 engines remain applicable.

The installation of an engine modified in accordance with this STC will require a determination by the installer that no interference is created with existing aircraft system.

Engines equipped with the limberman spin-on oil filter must continue to be maintained in accordance with the original engine manufacturers maintenance instructions, except as indicated on an FAA sealed copy of Timberman Maintenance Instructions No. AT-IE-185-MI, dated March 11, 1986, or later FAA approveo revision, a copy of which must be added to the engine maintenance records.

A copy of this STC must be included in the permanent records of each engine which is modified in accordance with this STC.

This STC covers the fabrication of all parts associated with this oil filter installation and also the physical modification of the engine models listed on this Certificate. Associated STC No. SA4317NM covers the use of these modified engines on specitic airplane models, and also covers the mounting of the oi filter, filter base, and mounting plate on the firewalls of these airplanes.

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