STC ST04468AT

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. 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: ST04468AT 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: A6WE Make: Boeing Model: DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87) Series Description of Type Design Change: Installation of Dual Universal Avionics Electronic Flight Instrument System (EFIS) EFI-890R. The installation replace the analog indicators with 4 Flat Panels displays to provide Primary Flight Display (PFD) and Navigation Display (ND) for each of the Captain and First Officer. The installation includes 4 Universal Avionics control panels (1 per PFD/ND), 1 Universal Avionics Data Concentrator Unit (DCU), 2 Universal Avionics Vision-1 computers to provide synthetic vision on the EFIS displays, 2 Northrop Grumman LCR-100 AHRS Units, and 2 AHRS switch control panels. This modification will be in accordance with LB Aircraft Engineering Master Data List LB-EFI.MD80-MDL, Revision G, dated November 11, 2019, or later FAA approved revisions.

Limitations and Conditions: "FAA approved Airplane Flight Manual Supplement, LB Aircraft Engineering LB- EFI.MD80-AFMS, Revision IR, dated December 18, 2019, or later FAA approved revisions, is a required part of this STC.

For maintenance and inspections, apply Instructions for Continued Airworthiness LB Aircraft Engineering LB- EFI.MD80-ICA, Revision C, dated March 18, 2019, or later FAA approved revisions…” (See continuation sheet 3 of 3)

Date of Application: November 28, 2016 Date Reissued:

Date of Issuance: December 18, 2019 Date Amended:

Signature Title (for) Christina M. Underwood Manager, Atlanta ACO Branch

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

Transfer the ownership of Supplemental Type Certificate Number: ST04468AT

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: ST04468AT

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

Date Issuance: December 18, 2019 Date Reissued:

"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 parts changed or affected by the change since the reference date of application, November 28, 2016, is based upon 14 CFR Part 25 as amended by Amendment 25-143. Based on Order 8110.48, the certification basis for this modification was determined to be:

Regulations at the latest amendment 25-0 through 25-143

§25.23 (a), Orig. §25.301 (a)(b), Amdt. 25-23 §25.303, Amdt. 25-23 §25.305 (a)(b), Amdt. 25-86 §25.307 (a), Amdt. 25-139 §25.337, Orig.

§25.561 (c)(1), Amdt. 25-91 §25.581 (a)(b)(c), Amdt. 25-23 §25.601, Orig.

§25.603 (a)(b)(c), Amdt. 25-46 §25.605 (a)(b), Amdt. 25-46 §25.607 (a)(b), Amdt. 25-23 §25.609 (a), Orig. §25.611, Amdt. 25-123 §25.613 (a)(b)(c), Amdt. 25-123 §25.619 (c), Amdt. 25-23 §25.771 (a)(c), Amdt. 25-4 §25.773 (a), Amdt. 25-140 §25.777 (a)(b)(c)(g), Amdt. 25-46 §25.789 (a), Amdt. 25-46 §25.869 (a)(3), Amdt. 25-123 §25.1301, Amdt. 25-123 §25.1303 (a)(b)(4)(5)(6)(c) , Amdt. 25-90 §25.1307 (b)(c)(d)(e) , Amdt. 25-72 §25.1309 (a)(b)(c)(d)(f), Amdt. 25-123 §25.1316 (a)(b), Amdt. 25-134 §25.1317 (a)(b)(c), Amdt. 25-122 §25.1321 (a)(b)(e), Amdt. 25-41 §25.1322 (a)(b)(c)(d)(e), Amdt. 25-131 §25.1329 (f)(i), Amdt. 25-119 §25.1331 (a)(2)(3), Amdt. 25-41 §25.1333 (a)(b)(c), Amdt. 25-41 §25.1351 (a)(1), Amdt. 25-72 §25.1353 (a)(c), Amdt. 25-123 §25.1357 (a)(b)(c)(d), Amdt. 25-123 §25.1363 (b), Orig.

§25.1381 (a)(b), Amdt. 25-72 §25.1431 (a)(c)(d), Amdt. 25-113 §25.1501 (a)(b), Amdt. 25-42 §25.1519, Orig. §25.1529, Amdt. 25-54 §25.1541, Orig.

§25.1555 (a),Orig. §25.1581 (a)(2)(d), Amdt. 25-72 §25.1585 (a), 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).

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