STC SA04553AT

SA04553AT Telair US, LLC 500-A Gateway Drive Goldsboro, NC 27534 Part 23 the Federal Aviation Regulations A00016WI Textron Aviation Inc.

408 Installation of a Bulk Load Cargo Handling System, P/N 73604-101, in accordance with U.S. Cargo Systems Master Drawing List (MDL) for Sky Courier 408 FedEx Bulk Load System, RPT-4058, Issue 5.0, dated November 4, 2022, or later FAA-approved revision.

The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. (Limitations and Conditions continued on page 3 of 4) May 6, 2022 December 20, 2022 (for) Robert P. Capezzuto Acting Manager, Atlanta ACO Branch 4

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SA04553AT Limitations and Conditions: (continued)

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

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.

A copy of this STC must be included in the permanent record of the modified aircraft.

The Illustrated Parts Catalog & Component Maintenance Manual, U.S. Cargo Systems Publication No. 50-20-46, Rev. 3.0, dated November 4, 2022, or later FAA accepted revision; the Weight and Balance Report for Sky Courier 408 FedEx Bulk Load System, RPT-4055, Issue 4.0, dated November 4, 2022, or later FAA accepted revision; and the Instructions for Continued Airworthiness for Sky Courier 408 FedEx Bulk Load System, RPT-4059, Issue 1.0, dated March 28, 2022, or later FAA accepted revision, must be made available to the operator at the time of installation.

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 Textron Aviation Inc. Model 408 airplane is as follows:

a. The type certification basis for the Textron Aviation Inc. Model 408 airplane is shown on TCDS A00016WI for parts not changed or not affected by the change.

(Certification Basis continued on page 4 of 4) 3 4

SA04553AT Certification Basis: (continued)

b. The certification basis for parts changed or affected by the change since the reference date of application, May 6, 2022, is based upon part 23 as amended by Amendment 23-64. 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 the latest amendment 23-1 through 23-64

23.1529, 23.2010, 23.2100, 23.2210, 23.2215, 23.2230, 23.2235, 23.2250, 23.2255,

23.2260, 23.2265, 23.2325(a)(3), 23.2500, 23.2505, 23.2605, 23.2620

Regulations at an intermediate amendment None

Regulations at the amendment level in TCDS A00016WI None.

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