Tenders Are Invited For Aircraft-Engine Repair Services - Performing Major Repairs Of Two Mars 90 Type Gas Turbine Engines (Gtd)

Aircraft-Engine Repair Services - Performing Major Repairs Of Two Mars 90 Type Gas Turbine Engines (Gtd). The Subject Of This Order Is The Overhaul Of Two Mars 90 Type Gas Turbine Engines (Gtd), Including The Following Activities According To The Technical Specification, Namely: - Dismantling Of The Existing Two Mars 90 Gas Turbine Engines From Gtka No. 8 Of Ks Lozenets And Gtka No. 3 Of Ks Petrich; - Transport Of The Engines From Lozenets And Petrich To The Contractors Repair Base; - Carrying Out Disassembly, Defect, Overhaul, Restoration, Replacement Of Parts And Assembly Of The Engines; - Engine Transport Back From The Contractors Repair Base To Lozenets And To The Employers Petrich Respectively; - Assembly And 72 Hour Tests In Operational Conditions Of The Engines; - Presentation Of The Final Report On The Repair Of The Gtd; - Warranty Maintenance The Gas Turbine Engines Were Manufactured And Supplied By Solar Turbines Incorporated, Based In San Diego, Usa. They Were Put Into Operation In 2016, Respectively, At The Gtka No. 8 Compressor Station And The Petrich Compressor Station No. 3. The Engines Are Model Mars 90 With Machine Identification Me2bea-1100-270, Which Defines Their Technical Characteristics, Operational Parameters And Specific Maintenance Requirements According To The Manufacturers Prescriptions. By Now, The Engines Have Reached Close To 30,000 Operating Hours. This Operational Threshold Is Essential Because, According To The Manufacturers Service Concept, It Represents The Limit At Which A Major Overhaul Is Necessary. This Requirement Is Determined By The Accumulated Wear Of Main Units And Components Operating At High Temperature And Mechanical Loads, Which Can Lead To Deterioration Of Operational Characteristics And Increased Risk Of Occurrence Of Emergency Events. Major Overhaul Includes Complete Engine Disassembly, Detailed Diagnosis And Condition Assessment Of All Key Components, Replacement Or Restoration Of Worn Items, Subsequent Assembly, Balancing And Testing. Through The Implementation Of These Activities, The Goal Is To Restore The Original Technical Parameters Of The Engines, Including Power, Efficiency And Reliability Of Operation. Carrying Out The Repair Is Necessary In Order To Ensure Safe, Reliable And Trouble-Free Operation Of The Equipment Within The Gas Transmission Infrastructure. Additionally, According To The Manufacturers Instructions, A Successful Overhaul Will Allow The Engines To Extend Their Service Life To A Total Of Approximately 60,000 Operating Hours.