STC SR00280DE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SRO0280DE This certificate issued to: Paravion Technology, Inc.

Part 27 of the Federal Aviation Regulations.

Original Product Type Certificate Number: H2SW Make: Bell Helicopter Textron Model: 407 Description of Type Design Change: Installation of a bleed air cabin heating system in accordance with Report No. DL-407H-100, Rev. D, dated February 24, 1997, or later FAA approved revision.

Limitations and Conditions: 1. A copy of this certificate and FAA approved Flight Manual Supplement 407H-100, dated April 21, 1997, or later approved revision, must be maintained as part of the permanent records for the modified rotorcraft. 2. Continued Airworthiness, which defines inspection and maintenance requirements, is accomplished in accordance with Paravion Technology, Inc. Cabin Heater Installation Maintenance Manual PR-407H-120M, Rev. N/C, dated April 14, 1997, or later FAA accepted revision must be maintained as part of the permanent records for the modified aircraft. 3. This approval should not be extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and other previously approved modifications will introduce no adverse effect upon the airworthiness of the rotorcraft. 4. The Bell Helicopter Textron Model 407 particle separator kit (number 206-706-212) is a required component for the bleed air cabin heating installation. 5. This installation describes 2 different Control Panel Assembly locations (overhead panel (-1) and right side interior panel (-2). Only one installation location is allowed per STC modification per rotorcraft. 6. If the holder agrees to permit another person to use this certificate to alter the product, the holder sha!' give the

rendered, suspended, revoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration .

Date of Application: July 3, 1996 Date Reissued:

Date of Issuance: April 22, 1997 Date Amended: September 26, 1997 FEDERA AVIATION My atecion of the strinis nogs.

Ronald F. May (Signature) Manager Denver Aircraft Certification Office HOMINIST RATION Northwest Mountain Region, Denver, Colorado (Title)