STC SR01074DE

SR01074DE Metro Aviation Inc.

1214 Hawn Avenue Shreveport, LA 71107 Federal Aviation Regulations29 H13EU Airbus Helicopters Deutschland GmbH MBB-BK 117 C-2, MBB-BK 117 D-2, MBB- BK 117 D-3 Installation of Stryker 6086 Performance-PRO XT Gurney system and Performance Pro MX Locking System in accordance with MDL145M-6086, Master Drawing List, Rev C dated 11/11/2020, FAA approved 12/21/2020 or later FAA approved revision. FAA Approved Flight Manual Supplement, FMS145M-6086, Rev "-" dated 11/23/2020, FAA approved 12/21/2020 or later FAA approved revision, is required for this installation. Instructions for Continued Airworthiness, EMM145M-6086, Rev A dated 11/16/2020, FAA accepted 12/21/2020, or later FAA accepted revision is required to be made available at installation.

1. The installer must determine whether this design change is compatible with previously approved modifications.

August 21, 2020 December 21, 2020 May 4, 2022 S. Frances Cox Acting Manager, Fort Worth ACO Branch Compliance & Airworthiness Division Aircraft Certification Service 3 (Continued on pages 3 of 3) -

3 SR01074DENumber:

FAA Form 8110-2 (03/21) Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) 3 3 SR01074DENumber:

2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must 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 Airbus Helicopters Deutschland GmbH MBB-BK 117 C-2, MBB-BK 117 D-2, and MBB-BK 117 D-3 is as follows:

a. The type certification basis for MBB-BK 117 C-2/D-2/D-3 rotorcraft is shown on TCDS H13EU for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, 8/21/2020, is based upon 14 CFR Part 29, effective February 1, 1965 plus Amendments 29-1 through 29-40. 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 this modification was determined to be:

Regulations at latest amendment; None Regulations at an intermediate amendment; None Regulations at the amendment level in TCDS H13EU;

14 CFR Sections: 29.2 Amdt. 29-32; 29.301 Amdt. - ; 29.303 Amdt. - ; 29.305(a)(b)(1) Amdt. - ;

29.307(a)(b)(6) Amdt. 29-30; 29.337(a) Amdt. 29-30; 29.561(a),(b)(3) Amdt. 29-38; 29.601 Amdt. - ;

29.603 Amdt. 29-17; 29.605 Amdt. 29-17; 29.607 Amdt. 29-5; 29.609 Amdt. - ; 29.611(a,b) Amdt. - ; 29.613 Amdt. 29-30; 29.619 Amdt. - ; 29.621 Amdt. - ; 29.623 Amdt. - ; 29.625 Amdt. - ; 29.783(a,e) Amdt. 29-31;

29.785(a,b,c,e),(k)(1) Amdt. 29-29; 29.785(k)(2) Amdt. 29-29; 29.803(a,b,d,e) Amdt. 29-30; 29.805(a) Amdt.

29-30; 29.807(a)(4),(b) Amdt. 29-30; 29.809(a-c) Amdt. 29-30; 29.813(c)(2) Amdt. 29-12; 29.815 Amdt. 29-12;

29.853(a),(b) Amdt. 29-23; 29.1301 Amdt. - ; 29.1307(a) Amdt. 29-12; 29.1309(a),(b) Amdt. 29-14; 29.1411 Amdt. - ; 29.1413(b) Amdt. 29-16; 29.1529 Amdt. 29-20; 29.1541 Amdt. - ; 29.1581(a,b,d) Amdt. 29-15;

29.1583(c,e) Amdt. 29-24; 29.1585(a) Amdt. 29-24; 29.1589 Amdt. - ; D29.1 Amdt. 29-30 ------------------------------------------------------------END--------------------------------------------------------------------