This tender invites bids for the supply of E.C.M 40 E Series Engines specifically designed for PIA aircraft, located in Karachi. The Supply Chain Management Department of Pakistan International Airlines (PIA) is seeking qualified suppliers to provide these critical engine components, essential for the maintenance and operational efficiency of the fleet. The engines must meet the latest software standards or be equivalent units, ensuring compatibility and performance reliability for the ACU-802-DDS TLD aircraft. The procurement involves detailed technical and financial proposals submitted on a Single Stage Two Envelope Basis. Bidders must prepare technical literature, samples if applicable, and comply with all mandatory requirements including tender fees and earnest money deposits. The supply location at Karachi Airport presents logistical considerations, and suppliers should be prepared to meet delivery schedules and quality standards under the supervision of PIA's procurement team. Bidders are advised to ensure their PEC registration category aligns with the supply of aviation parts and that they maintain valid FBR/ATL status for the fiscal year 2025-26. Compliance with tax registration and submission of all required certifications is mandatory. The tender fee is PKR 15,000 and earnest money of PKR 60,000 must be submitted as a pay order in favor of Pakistan International Airlines. The submission deadline is set for 28th January 2026 at 10:30 AM, with bid opening at 11:00 AM on the same day at the SCM Department Building, PIA Head Office, Karachi Airport. Bids must be submitted electronically via PPRA E-PADS and manual submission of hard copies including original bid security is required before the deadline. Pro-Tip: Carefully review the tender documents for the specific requirements on bid security and ensure the technical and financial proposals are sealed separately with authorized signatures. Missing the exact submission protocol, especially the electronic submission via PPRA E-PADS, will lead to disqualification.