The steps were inspected and it shows surface corrosion. A repair was done on the steps by replacing the corrosion area with 1/8 Thickness 2024-T3 Aluminum Sheet Metal. P.O # 9445. The repair method and techniques as well as all materials utilized in the performance of such repair are in accordance and approved under AC 43.13-1b. FAA Form 8130-3 Authorized Release Certificate. Organization: AEROTAR 4089 NW 135 Street Opa-Locka, FL 33054. Item: 1336-3. Description: Steps-LF. Part Number: 0513395-1. Eligibility: N/A. Quantity: 1. Serial/Batch Number: N/A. Status/Work: Repair. Work Order/Contract/Invoice Number: 1336-3. Form Tracking Number: ATAR-1336-3. 14 CFR 43.9 Return to Service.