STC SR09192RC

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate ST1751RC-R Number: SR09192RC This certificate issued to: Tech-Tool Plastics, Inc.

7800 Skyline Park Dr.

Fort Worth, TX 76108 Part 27 of the Federal Aviation Poogulations.

Original Product -- Typo Certificato Number : H3WE McDonnell Model: 600N Description of Type Design Change: Installation of a cabin window assembly in accordance with Tech-Tool Plastics, Inc. Master Data List No. TTP-600 Revision I/R, dated 5/12/98 or later FAA approved revision.

Limitations and Conditions: The standard window assemblies (where the window profile is the ame as the OEM) according to Master Drawing Lists 369-3505-100, 600-3507-100, and 369- 506-100 may be installed in any combination with the OEM window assemblies on the aircraft. There are only two configurations approved for the Cabin Comfort Window assemblies (where the window profile is larger than the OEM) which are:

All six window assemblies, which are MDL 369-4505-100 (Forward), MDL 600-4507-100 (Mid), and MDL 369-4506-100 (Aft) must be installed together.

2. The Mid (MDL 600-4507-100) and Aft (MDL 369-4506-100) Cabin Comfort Windows must be installed together with the forward windows having the same profile as the OEM.

Date of Application: March 3, 1998 Date Reissued:

Date of Issuance: May 22, 1998 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) Carl F. Mittag, Manager, TOMINSTRATIO Rotorcraft Certification Office Southwest Région (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SR09192RC Date of Issuance: May 22, 1998 Limitations and Conditions: (Continued): Instructions for Continued Airworthiness Replacement Window Assemblies Original Revision dated July 17, 1998 or later approved FAA revision are required. Rotorcraft Flight Manual Supplement EMS TTP-600-01 Revision IR, dated August 24, 1998 or later FAA approved revision is required. Compatibility of this design change with previously approved modifications must be determined by the installer. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

FAA Form 8110-2-1(10-69) Page 3 of 3

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Signature of grantor (In ink):