STC SA04015NY

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

Number: SA04015NY

Parts 23 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: A1WI Make: Textron Aviation Inc.

Model: 525, 525A, 525B

Installation of Cabin Entry Step Assembly on Textron Aviation, Inc., Models 525, 525A, and 525B aircraft in accordance with Aerospace Design & Compliance, LLC. (1) Master Data List C25B-MDL-0038, Rev IR, dated 4/4/2019, or later FAA approved revision. (2) Instructions for Continued Airworthiness (ICA) C25B-ICA-0038, Rev. IR, dated 4/1/2019, or later FAA accepted revision. The ICA and its contents must be incorporated into the operator’s maintenance program.

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

2. If the holder agrees to permit another person to use the certificate to alter the product, the holder must give the other person written evidence of that permission.

Certification Basis:

Date of Application: March 11, 2019 Date Reissued: May 22, 2019 Date of Issuance: April 4, 2019 Date Amended:

Signature

Title Jim Grigg Manager, Fort Worth ACO Branch, Compliance & Airworthiness Division Aircraft Certification Service Skyway Group, Inc.

122 Howard Langford Drive Uvalde, TX 78801

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

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

Transfer the ownership of Supplemental Type Certificate Number: SA04015NY

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: SA04015NY

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

Date of Issuance: April 4, 2019 Date of Reissuance: May 22, 2019

Certification Basis (Continued):

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 Textron Aircraft Inc., models 525, 525A and 525B is as follows:

(1) The type certification basis for the Textron Aircraft Inc., models 525, and 525A and 525B airplane is shown on TCDS A1WI for parts not changed or not affected by the change.

(2) The certification basis for parts changed or affected by the change since the reference date of application March 11, 2019, is based upon Part 23 as amended by Amendment 23-54 with the exception of those above amendment 23-54 listed below.

Regulations at later amendment than 23-54:

None

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