This tender invites qualified contractors in Karachi to undertake rehabilitation and general maintenance of aviation equipment for Pakistan State Oil Company Limited. The scope involves specialized repair and upkeep tasks essential for operational safety and efficiency within the aviation sector. The work requires contractors to manage technical challenges related to aviation equipment maintenance, ensuring compliance with industry standards. The site is located in Karachi, demanding contractors to have relevant experience and financial capacity to handle the complexity and precision required for such equipment. Bidders should ensure they meet the PEC category requirements and maintain an active FBR ATL status for the fiscal year 2025-26. It is advisable to prepare a valid Earnest Money in the form of a Call Deposit Receipt (CDR) as per tender instructions and ensure all documentation aligns with PSO's procurement policies. The submission deadline is on the 14th of January 2026 at 14:15 hours, with bid opening scheduled at 15:00 hours on the same day via the SAP Ariba portal. Tender documents are available from 29th December 2025 through the SAP Ariba system. All submissions must be made electronically through the portal. Pro-Tip: Make sure to register on the SAP Ariba portal well in advance and upload the signed request letter on official letterhead to avoid last-minute issues. Also, keep an eye on PSO and PPRA websites for any updates or amendments to the tender conditions.