STC SA3500NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3500NM This certifical, wed te Wiley's Seaplanes Purt 4a 1f the Civil Air Regulations Original Product - Sype Fortificates umber: A-768 Make: Cessna Mintel: 120 and 140 landplanes, skiplanes and seaplanes Description of Type Design Change:

Installation of a dorsal fin in accordance with a FAA sealed copy of Wiley's Seaplanes Drawing No. DF 120/140, Sheets 1 and 2, Revision "A", dated May 8, 1986, or later FAA approved revision.

NOTE: The flight test airplane was a Cessna Model 120 equipped with an AVCO Lycoming 0-290-D2 engine and McCauley 1A175/GH-8240 propeller and EGO S6-16en floats.

Limilalina andfanditin The approval of this change in type design applies only to those basic Cessna Models referenced above. This approval should not be extended to other airplanes of these models on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse eftect upon the airworthiness of that airplane. A copy of this certificate should be added to the permanent aircraft records.

This certificate and the supporting data which is the basis for approval shull remain in ffet until surrendered suspended, reached, or a termination date i therwise established by the Eldministrater of the Federal Aviation Administration Lute f applicatun: October 4, 1985 I ale pressued May 30, 1986 Date Amended:

FEDERAL EVIATION By dinction of the Eldmenistrater Welliam B Giskue t (Signature ) TAMIN STRAITOR Manager, Seattle Aircraft Certification Office (Title ) Any alteration of this certificate is punishable by a fine of not exceeding $1,000, or imprisatiment not exceeding 3 seats, or both This certificate may be transferred in wevedaner weath FAR 21,45 FAA FOR 8110-2 (10-68)