70Z03825QL0000116 SOW.pdf

This document is a Statement of Work (SOW) for Cold Spray Dimensional Restoration Repair of a CT7-9C Engine Front Inlet (P/N 6053T68G07) for the US Coast Guard, dated 01 July 2025. The SOW details the repair requirements for an HC-144 engine inlet frame suffering from corrosion damage, with the primary objective of evaluating cold spray (CS) as a corrosion repair technique. The USCG currently has limited spare parts, with only 2 engine front inlet frames available per year, and the component is considered non-repairable when damage exceeds specified limits.

The SOW outlines specific requirements for the repair process, including: using appropriate NDT methods, post-CS machining to meet dimensional specifications, completing repairs within 60 days of receiving the component, and providing comprehensive documentation. Deliverables must include NDI deposition reports, CS Control Sheets, a Significant Component History Report entry, an independent post-CS Airworthiness Certification, an itemized invoice, and FAA 8130-3 documentation. The repair methods can include MIL-HDBK-542 specifications, DER repair plans, or other approved repair specifications, with all repairs requiring a CS Control Sheet and potentially additional enhancements like shot peening.