STC ST04449AT

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is th e property of the STC holder.

FAA Form 8110-2 (5/14) Page 1 of 3

Number: ST04449AT

This certificate issued to: LB Aircraft Engineering 6355 NW 36th St. Suite 510 Miami Springs, FL 33166

Part 25 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: A16WE Make: Boeing Model: 737-200/-300/-400/-500 series

Description of Type Design Change: Replacement of the dual Honeywell or Collins enhanced Mode S transponders with a dual ACSS XS-950 Automatic Dependent Surveillance – Broadcast (ADS-B) Out System.

Installation of Gables G7490-() control panel to provide Flight I.D. data and Transponder Fail annunciation.

Installation of ADS-B Function FAIL annunciators.

This modification will be in accordance with LB Aircraft Engineering LLC. Master Data List LB-XS950.737-MDL Revision E, dated March 25, 2019, or later FAA approved revisions.

Limitations and Conditions: "The aircraft must be equipped with Dual Universal Avionics UNS-1FW Flight Management System with WAAS/GNSS sensors to provide High-Integrity GPS position Source.

Prerequisite to this installation, the existing transponders must be wired to provide Mode S ELS and Mode S EHS functions.

FAA Approved Flight Manual Supplement, LB Aircraft Engineering document LB-XS950.737-AFM, Rev IR, dated May 10, 2019, or later FAA approved revisions, is a required part of this STC.

For maintenance and inspections, apply LB Aircraft Engineering Instructions for Continued Airworthiness LB-XS950.737- ICA, Revision A, dated March 24, 2019, or later approved revisions.”

Date of Application: April 18, 2016 Date Reissued:

Date of Issuance: May 10, 2019 Date Amended:

Signature Title Christina M. Underwood Manager, Atlanta ACO Branch

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller.

FAA Form 8110-2 (5/14) Page 2 of 3

Transfer the ownership of Supplemental Type Certificate Number: ST04449AT

To (Name and address of transferee)

From (Name and address of grantor)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST04449AT

Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller.

FAA Form 8110-2 (5/14) Page 3 of 3

Date of Issuance: May 10, 2019 Date Reissued:

Limitations and Conditions (Continued): "This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determined by the installer that the interrelationship between this change and any other previously approved modifications, will produce no adverse effect upon the airworthiness of that airplane. 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.”

Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Boeing B737 Series is as follows:

a. The type certification basis for Boeing 737 series airplanes is shown on TCDS A16WE for parts not changed or affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, April 18, 2016, is based upon 14 CFR Part 25 as amended by Amendment 25-142. Based on Order 8110.48, the certification basis for this modification was determined to be:

Regulations at the latest amendment 25-0 through 25-142

§25.23(a), Orig. §25.301(a)(b), Amdt. 25-23 §25.561(c), Amdt. 25-91 §25.601, Orig. §25.603 (b)(c), Amdt. 25-46 §25.611, Amdt. 25-123 §25.853 (a), Amdt. 25-116 §25.863 (a), Amdt. 25-46 §25.869 (a)(4), Amdt. 25-123 §25.1301(a)(b)(c)(d), Amdt. 25-123 §25.1309(b)(c)(d), Amdt. 25-123 §25.1322 (b)(c), Amdt. 25-131 §25.1351 (a)(1), Amdt. 25-72 §25.1353 (a)(d), Amdt. 25-123 §25.1431 (a)(c), Amdt. 25-113 §25.1529, Amdt. 25-54 §25.1581(a)(2)(d), Amdt 25-72 §25.1585 (a)(1)(2), Amdt. 25-105

14 CFR Part 26 regulations: Based on 14 CFR § 21.101(g), applicable provisions of 14 CFR Part 26 are included in the certification basis. For any future 14 CFR 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections; as of the issuance date of this STC, compliance has been found for the following regulations: 14 CFR §§ 26.11 (Amdt 26-

0), 26.47 (Amdt 26-1).

--------------------------END---------------------------