STC SA4340NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A4340NM This certificate issued to: Methow Aviation, Inc.

Purt 03 of the C2V11 AIT Regulations:

Original Product -Type Certificate Number: A-765 Make: Beech Model: E1 85 Description of Type Design Change: Installation of a PT-6A-20 engine on the left side and a PT-6A-6A on the right side, each installed per instructions of STC SA1016WE.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Beech model E18S aircraft, Serial Number BA-161, Registration Number N432U only. A copy of this Certificate, Continuation Sheet, and FAA Approved Flight Manual Supplement dated August 4, 1988, shall be maintained as part of the permanent

Date of Application: February 19, 1987 Date Reissued:

Date of Issuance: August 4, 1988 Date Amended:

ÇEDERAL AVIATION By Direction of the Administrator ( Signature ) TRAINIS RAID Manager, Seattle Aircraft Modification Branch (Tille)

FAA FORM B110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number 5A4340NM Limitations and Conditions: (continued) The conditions and limitations of Aircraft Specification Number A-765 apply except where superseded by the following:

This Supplemental Aircraft Specification Data Sheet, which is part of STC SA4340NM, prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Federal Air Regulations.

Supplemental Type Certificate HOLDER: Methow Aviation, Inc.

Model E18S (Normal Category) as modified by STC SA4340NM Left Engine: PT-6A-20 installed per STC SA1016WE Right Engine: PT-6A-6A installed per STC SA1016WE Fuel: See STC SA1016WE Engine Limits: See STC SA1016WE C.G. Range: No change.

Maximum Gross Weight: 11,100 1bs.

Specifications Pertinent to All Models:

Equipment:

Propeller and Propeller Accessories (except Deicing Equipment) See STC SA1016WE NOTE 2: The following placard must be displayed:

(f) Instrument panel, in full view of pilot:

BEECH E-18-S-HAMILTON WESTWIND III This aircraft has mixed engines Left - PT-6A-20 Right - PT-6A-6A Observe limits of individual temp gauges This aircraft must be operated within the limits and conditions prescribed in Airplane Flight Manual 900K"

FAA FORM 8110-2-1 (10-69) END PAGE 3 OF3 PAGES

Name METHOW AVIATION. INC.

Address Hancar 201. Paine Fld.

Everett, WA 98204 STC No. SA4340NM

AIRPLANE FLIGHT MANUAL SUPPLEMENT FOR BEECH E-18-S Hamilton Westwind III Rep. No. N432U ger. No. BA-161 This Supplement must be attached to the FAR Approved Airplane Flight Manual when mixed engines (PT-6A and PT6A-20) are installed in accordance with Supplimental Type Certificate number, SA4340NM_.

and SA 101SWE. The information contained herein supplements or supersedes the information of the basic Airplane Flight Manual only in those areas listed herein. limitations, procedures and performance information not contained in this Supplement, consult the basic Airplane Flight Manual.

LIMITATIONS OPERATING CONDITION OPERATING LIMITS (PT-EA-22) (РT-BA-6A) PONER TIME TOROLE PT69-20 PTBA-EA PROPELLER • OIL DIL

SETTING LIMIT PSIG MAXINUM MAXIMUM REM PRESSURE TEMPERATURE

OBSERVED OBSERVED FSIS ITT C TIT C % Takeoff PT-5A-20 None 42.5 750 994 101.5 2220 65-85 110-93 Takeoff PT-SA-SA 5 Mom.

Max. Cont. None 42.5 75₴ 952 2222 65-95 0-93 Max. Cruise None 42. 3 75₴ 938 2200 65-85 0-99 Idle Nore 728 702 (40 Min.) -48-93 Starting 2 55c. 1090 103₴ -40 (510) Accelleracion 2 Ban. 48.5 750 994 102.5 2420 0-99 Reverse 60 Sec. 12.5 75a 994 101.5 2090 65-85 0-99 II. PROCEDURES: Remain the same III. PERFORMANCE: Remain the same FAA APPROVED: Manager, Seatt Franch Aircraft Make: AUG 8 1980 PAGE 1 of 1