Temporary Transfer to Workshop for Specialized Repairs
Due to strict safety standards and intense market competition, the aviation industry is constantly seeking methods to maintain fleet reliability while reducing
operational costs. One of the key solutions is the temporary transfer of aircraft or components to specialized workshops (Shops) for advanced
repairs. This approach allows airlines to take advantage of the capabilities and expertise of repair centers rather than conducting all maintenance operations
on-site, thereby improving the overall quality of repairs.
Why Do We Need Workshop Repairs
Although many routine services and inspections are performed on the ramp or even in the airline’s main hangar , certain defects and malfunctions require a
higher level of component disassembly, precise testing, and even specialized machining or refurbishment. For example, detailed repairs on turbine modules,
power generators , high-pressure hydraulic systems , or advanced avionics (such as digital flight controllers) are often carried out in specialized workshops
equipped with dedicated tools. These repairs typically require isolated environments, precise testing benches, or specialized balancing equipment that are not
available on the ramp or even in the hangar.
What Is the Process of Transfer to a Workshop?
When it is determined during scheduled checks or line maintenance that a component requires deeper repair , a decision is made to temporarily transfer the
component—or even the entire aircraft—to a specialized workshop. This begins with the precise logging of the issue in the airline’s CAMO (Continuing
Airworthiness Management Organisation) system, followed by planning the transport and repair timeline.
If the component is detachable and shippable (such as a pump, landing gear, or even an engine ECU), the technical team securely packages it and sends it to
the workshop via truck or cargo aircraft. If not, the entire aircraft may be temporarily moved to a larger MRO center.
Key Advantages of This Approach
Temporary transfer to specialized workshops offers several major advantages for airlines and operators:
Higher Quality and Accuracy: Specialized workshops are typically equipped with advanced test devices , calibrated equipment , and highly experienced
personnel who can resolve complex faults with greater precision.
Extended Component Life: Due to the possibility of complete overhauls or internal part replacements ,many components returned from these workshops
are restored to nearly factory-new condition (Zero Time).
Cost Savings: Sending a component to a specialized workshop is usually more cost – effective than purchasing a new part . Furthermore , the airline avoids
the need to invest in and maintain heavy specialized equipment.
Full Compliance with Legal Requirements : Most specialized workshops are certified by international authorities such as EASA Part 145 or FAA,
ensuring full compliance with safety standards and issuance of valid Release to Service documentation.
Challenges and Requirements of This Process
Despite its benefits, this method comes with some challenges . The most critical are logistics and timing . If the shipping and return of the component take
too long, the airline’s fleet may suffer extended ground time due to a lack of spare parts . To address this , airlines typically sign detailed SLA agreements
with these workshops that define and guarantee maximum Turnaround Time (TAT) . Additionally , parts must be transported under specific conditions to
prevent any damage during transit.
Collaboration Between Airline, Manufacturer, and Workshop
Success in this repair model relies on a strong communication chain between the airline,the OEM (Original Equipment Manufacturer),and the specialized
workshop. Typically, the airline’s engineering department sends the test results and failure signs to the OEM for guidance. Then, the component is transferred
to the workshop under official CMM (Component Maintenance Manual) procedures for authorized repairs. After completion, Final Acceptance
inspections and full documentation are conducted, and the component returns to the fleet with a valid certification.
Conclusion
Temporary transfer of components or even entire aircraft to specialized workshops is an integral part of optimal maintenance strategies in modern aviation.
This practice enables airlines to benefit from high-quality repairs without making large investments in expensive and specialized equipment,all while continuing
flight operations with minimal disruption. As diagnostic technologies advance and more sophisticated workshops emerge , this model will become even more
important and evolve into a widespread standard for fleet support.
Contact us for consultation and purchasing