STC SA3366WE

Number SA3366WE

This certificate, issued to Britax Heath Tecna Inc.

3225 Woburn Street Bellingham, WA 98226 Part 25 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A6WE Make: McDonnell Douglas Model: DC-9-41, -31, -32, -15F, -21, -14

Description of the Type Design Change: Installation of cabin interior. Installation includes all or part of the following: overhead storage compartment, sculptured ceiling and sidewall panels, fluorescent cabin lighting, standby lighting, emergency lighting, and overwing exit locator sign in accordance with FAA sealed HITCO Drawing List KME1007DL, Revision C, dated February 22, 1977, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above aircraft only. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated, unless it is determined that the relationship between this change and any of those previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. This determination should include consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage. The resulting interior arrangement, along with the required placarding has not been evaluated and is not part of this STC. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

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.

Date of application: October 7, 1976 Date reissued: 9/28/90; 10/28/94; 6/1/96; 7/20/00

Date of issuance: March 4, 1977 Date amended: 3/31/78; 12/23/80; 4/20/82; 4/25/83

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)