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Delta TechOps

Delta TechOps is the maintenance, repair, and overhaul (MRO) division of , Inc., serving as North America's largest provider of aviation MRO services. Established as part of Delta's longstanding operations, it leverages nearly a century of expertise to support the airline's fleet of approximately 990 as of November 2025 and deliver comprehensive services to more than 150 third-party customers worldwide. With over 10,000 employees across 58 maintenance stations globally as of 2018, Delta TechOps operates as a fully integrated production center, recognized as North America's largest MRO provider. The division began offering third-party MRO services 25 years ago in , building on ' foundational history dating back to 1928, while achieving certifications from authorities including the FAA (Parts 121 and 145), EASA, and Argentina’s National Airworthiness Directorate. Delta TechOps specializes in a broad range of services, including airframe maintenance, engine overhauls (such as for LEAP-1B and GTF engines), component repairs, and advanced technologies like AI-driven and inspections. Notable achievements include its role as one of eight global OEM-authorized providers for LEAP-1B engines, a 2025 agreement to expand GTF engine overhaul capacity by over 30% to 450 engines annually, and contributions to Delta's award-winning on-time performance through innovations in efficiency and sustainability.

Company Overview

Operations and Scale

Delta TechOps employs more than 13,000 technicians, engineers, and support staff, operating across 45 maintenance stations worldwide to deliver comprehensive maintenance, repair, and overhaul (MRO) services. This extensive workforce supports the internal maintenance needs of , which exceeds 900 aircraft, while also extending services to over 150 third-party and operators globally. As the largest MRO provider in , Delta TechOps holds a prominent position in the industry, ranking third among global MRO providers by production capacity and scope. The division's revenue from third-party MRO work has shown steady growth, expected to approach $800 million in 2018, driven by expanded contracts in engine and component services. Earlier milestones include more than $500 million in third-party revenue in 2008, reflecting its established role in supporting external operators during that period. Looking ahead, Delta TechOps is projected to surpass $1 billion in third-party revenue for , with $453 million generated in the first half of 2025 and on track to exceed that annually, fueled by rising demand for maintenance on legacy and next-generation aircraft platforms. Recent expansions underscore this scale, with Delta TechOps securing nine new component maintenance contracts valued at $225 million in the first quarter of 2023 alone, enhancing its global footprint in component overhaul services. These agreements, combined with ongoing investments in facilities and technology, position the division to handle increasing volumes of international work while maintaining high reliability for Delta's operations.

Role within Delta Air Lines

Delta TechOps serves as the primary maintenance, repair, and overhaul (MRO) provider for ' fleet of over 900 aircraft, handling comprehensive , , and component services to ensure operational and reliability. This in-house capability allows Delta to maintain its diverse fleet—spanning narrow-body and wide-body models—through proactive strategies like and principles, directly supporting the airline's status as one of the world's most reliable carriers. By integrating seamlessly with Delta's daily operations, Delta TechOps enables rapid turnaround maintenance at major hubs, including its primary facility in , , where it operates a $4 billion production center to minimize aircraft downtime and optimize flight schedules. This close coordination has been instrumental in achieving Delta's award-winning on-time performance, as recognized by aviation analytics firms, by reducing maintenance-induced delays and enhancing overall fleet utilization. Economically, Delta TechOps bolsters ' cost efficiency by curtailing reliance on external vendors, thereby lowering expenses and providing a strategic in reliability benchmarks. These internal efficiencies not only control operational costs but also contribute to Delta's competitive positioning in a high-stakes market where maintenance reliability directly impacts profitability. Over time, Delta TechOps has transitioned from a purely internal support function to a dedicated , leveraging its expertise to generate third-party revenue from over 150 global customers, which now approaches $1 billion annually and supplements ' broader financial results. This evolution underscores its dual role in sustaining Delta's core operations while expanding into a commercially viable MRO .

History

Founding and Early Development

Delta TechOps traces its origins to the founding of Delta Air Service (predecessor to Delta Air Lines) in 1928, when the company began operations as a crop-dusting service in Monroe, Louisiana, and quickly expanded into passenger transportation with its first flight on June 17, 1929. From the outset, maintenance activities were integral to these operations, with a small team of aviation maintenance technicians (AMTs) handling basic repairs on propeller-driven aircraft like the Travel Air 2000 used for dusting and early routes between Texas and Mississippi. These early efforts emphasized safety and reliability in a nascent industry, supporting Delta's growth from agricultural services to scheduled passenger flights. As matured through the mid-20th century, its maintenance operations evolved to meet the demands of an expanding fleet and technological advancements. In and , focus remained on routine overhauls and repairs for piston-engine planes amid route expansions to major U.S. cities. The shift to in the marked a pivotal change, beginning with the acquisition of jets in 1959, which required specialized skills and facilities for engine and airframe maintenance previously unnecessary for propeller planes. This transition positioned Delta's technical teams at the forefront of innovation, preparing for the complexities of high-speed, high-altitude operations. A major milestone came in 1960 with the opening of the Jet Base—later renamed Technical Operations Center (TOC) 1—at Atlanta Municipal Airport (now Hartsfield-Jackson Atlanta International Airport), consolidating maintenance for Delta's growing fleet including its initial jets. This facility enhanced efficiency by centralizing repairs, overhauls, and inspections under one roof, serving exclusively Delta's fleet at the time. In subsequent decades, Delta TechOps began extending its expertise to third-party airlines, building on this foundational infrastructure.

Major Expansions and Milestones

In the early 1970s, Delta TechOps expanded its facilities to accommodate the introduction of wide-body aircraft into Delta Air Lines' fleet. In 1972, the company added a 20-acre hangar known as Technical Operations Center (TOC) 2, increasing the total acreage to 36 and enabling support for larger jets like the Boeing 747 and Lockheed L-1011. This expansion aligned with Delta's operational growth following its first wide-body acquisitions. By the 1980s, further infrastructure development was required to handle increasing maintenance demands. In 1982, Delta TechOps added 10 acres dedicated to engine shops, including a fourth engine test cell and expanded space, bringing the covered area to over 42 acres and enhancing capabilities for engine overhaul. This built on prior growth, with the overall facility reaching approximately 140 acres. The 1990s saw continued investment in heavy maintenance infrastructure. In 1991, Delta TechOps opened TOC 3, a 17-acre, four-story addition focused on heavy checks and repairs, expanding the total site to 63 acres and supporting more complex aircraft overhauls. Delta TechOps entered the third-party maintenance market in 2000, initially offering repair and overhaul services to external airlines. By , the division's overall revenues had grown to more than $310 million, reflecting expanded internal and external workloads amid Delta's fleet modernization. Quality and environmental commitments advanced in the late 2000s. In 2008, Delta TechOps achieved ISO 9001 certification for its component maintenance operations, demonstrating adherence to international standards. The following year, in 2009, it joined the U.S. Environmental Protection Agency's National Partnership for Environmental Priorities, committing to lead reduction and recycling initiatives that diverted over 7,000 pounds of hazardous materials. Strategic partnerships bolstered Delta TechOps' global footprint in the 2010s. In 2011, it expanded collaboration with through a five-year agreement for engine on CFM56-7B-powered Boeing 737s, partnering with Aviation Technologies for comprehensive support. In 2014, the company extended its services to with an integrated component exchange and repair program for 12 aircraft, building on prior A330 support. Additionally, Delta TechOps added LEAP-1B engine servicing capability in 2022 via a branded service agreement, enabling full , repair, and overhaul for these high-bypass turbofans powering aircraft. Recent milestones highlight sustained growth in third-party business. In April 2025, Delta TechOps celebrated 25 years of third-party MRO services, noting its role in powering over 150 customers worldwide with innovative solutions. In the first quarter of 2023, Delta TechOps secured nine new component contracts valued at $225 million, enhancing its repair and exchange services for international clients. In October 2025, it signed a long-term component care agreement with , the UK's third-largest airline, to support its narrowbody fleet and deepen presence. Earlier, in June 2025, Delta TechOps partnered with AAR's Trax subsidiary to modernize its maintenance and engineering systems using eMRO and eMobility solutions, initially deploying to over 6,000 technicians for improved efficiency.

Services and Capabilities

Aircraft Maintenance Services

Delta TechOps provides comprehensive aircraft maintenance services, specializing in heavy maintenance for airframes to ensure structural integrity, safety compliance, and operational efficiency for Delta Air Lines' fleet and third-party customers. These services encompass letter checks, including A, B, and C checks, as well as Package Service Visits (PSVs), which involve detailed inspections, repairs, and modifications performed in dedicated hangar facilities. With over 200 major visits annually, the division focuses on minimizing aircraft downtime through efficient turnaround processes at its primary hub in Atlanta and specialized sites like the A330 Center in Minneapolis-St. Paul. Heavy maintenance activities include structural repairs such as corrosion prevention and control, winglet inspections, installations, and repairs, which address wear on critical components to extend . Interior reconfigurations form a key part of these services, involving alterations, repairs, and inspections of cabin elements, alongside full painting and modification visits exceeding 200 per year to adapt interiors for evolving passenger needs and regulatory standards. These efforts support the integration of engine-related tasks during checks, ensuring holistic readiness without standalone powerplant focus. The division maintains capabilities across a wide range of aircraft models, reflecting Delta's diverse fleet of approximately 990 (as of November 2025). Supported Airbus models include the A220, A318, A319, A320, A321, and A330 families, while Boeing platforms encompass the 717, (all series including Classic and NG), 757 (all series), 767 (all series), (all series), and MD-80 series (including MD-88 and MD-90). upgrades are integrated into work through troubleshooting and Level 3 repairs for radios, instruments, and , enhancing and communication systems during heavy visits. overhauls, with capacities for over 150 units annually and 35-45 day turnarounds, cover models like the Boeing NG, 757, 767, and MD-88/90, while repairs address mechanical systems within the broader context. Recent expansions in service capabilities align with Delta's post-2010s fleet growth, including support for the A350XWB introduced in 2017 and neo variants such as the A319neo, A320neo, A321neo, and A330neo, enabling maintenance for these advanced widebody and narrowbody aircraft as they enter revenue service. This adaptability underscores Delta TechOps' role in sustaining modern fleets through certified FAR Part 145 and Part 121 repair authority.

Engine and Component Overhaul

Delta TechOps specializes in full overhauls, repairs, and testing for a wide range of engines and units (APUs), supporting both Delta Air Lines' fleet and third-party customers. The overhaul process involves detailed disassembly, non-destructive testing, piece-part repairs, reassembly, and final validation to ensure compliance with (OEM) standards and regulatory requirements. With facilities equipped with multiple test cells capable of handling engines up to 150,000 pounds of , the division conducts rigorous ground runs to verify output, levels, and before returning engines to service. This integrated approach minimizes downtime and enhances reliability for propulsion systems. The supported turbofan engines encompass key models powering commercial narrow-body and wide-body aircraft, including the CFM56-3, CFM56-5, and CFM56-7 series used on variants; the CF34-3A, CF34-3B, and CF34-3C on regional jets; the CF6-80A, CF6-80A2, CF6-80C2, and CF6-80E1 on wide-bodies like the ; the on the ; the PW4000-94 and PW4000-100 on the ; the on the ; the Trent 7000 on the ; and the Trent XWB on the Airbus A350. Additionally, Delta TechOps handles the PW1100G and PW1500G geared turbofan (GTF) engines for the and A220, as well as the BR715 on the . For APUs, services cover the GTCP 131-9B and GTCP 331-200 models, providing full restoration from first-run warranty repairs to mid-life overhauls. These capabilities support over 700 engine and APU shop visits annually, with more than 30% dedicated to external MRO customers. In April 2025, Delta TechOps agreed with to expand its GTF engine overhaul capacity by more than 30%, targeting up to 450 engines annually. A significant recent expansion occurred in 2022, when Delta TechOps became one of eight global OEM-authorized providers for the LEAP-1B , powering the ; this agreement enables full maintenance, repair, and overhaul (MRO) services, including module-level interventions and correlations to optimize life. By 2025, the division had completed initial correlations for the LEAP-1B, advancing predictive MRO techniques for this fuel-efficient . Complementing work, Delta TechOps overhauls related components such as accessories, hydraulic actuators, and pneumatic systems, including quick change line replaceable units (QEC LRUs), through in-house shops performing over 200,000 repairs annually on more than 20,000 part numbers. These component services focus on -integrated elements like fuel and oil pumps, thrust reversers, and pneumatic controls, ensuring seamless propulsion system functionality.

Specialized Support Services

Delta TechOps provides specialized support services that extend beyond standard and maintenance, focusing on auxiliary systems, response, and logistical solutions to enhance aircraft reliability and operational efficiency. These services include interior reconfiguration, repairs for and electronics, overhauls, (APU) maintenance, the Disabled Aircraft Recovery Team (D.A.R.T.), and tailored inventory management with engineering consulting. Through its Delta Flight Products division, Delta TechOps offers comprehensive interior reconfiguration services, encompassing cabin design, seating integration, and certification processes to meet passenger mobility requirements and regulatory standards. These services enable airlines to modernize cabins with innovative layouts, including features that allow passengers to remain in wheelchairs during flights, while ensuring compliance with aviation authorities. For example, certifications have been obtained for interior reconfigurations on 737-800 and A330-200 . Delta TechOps maintains in-house capabilities for and repairs as part of its operations, supporting a wide range of to ensure and functionality. With 25 specialized shops, the company provides repair solutions for avionics components, addressing issues in , communication, and flight control through ISO 9000-certified processes. Landing gear overhauls represent another key specialized service, with comprehensive packages offered at facilities in Atlanta, Georgia, achieving industry-leading turnaround times of 35-45 days. These overhauls cover major aircraft types, including 737NG, 757, 767, and 747 models, utilizing FAR Part 145 and Part 121 repair authority to restore gear to full operational standards. APU maintenance is handled with extensive expertise, including modification, repair, and overhaul for units like the GTCP 331-200, which has been serviced since 1984. These services support both and applications, providing first-run warranty repairs and ensuring reliable for ground operations and in-flight emergencies. The Disabled Aircraft Recovery Team (D.A.R.T.) delivers rapid global on-site emergency support, dispatching experts from the Technical Operations Center to address aircraft-on-ground situations and minimize downtime for customers worldwide. This quick-response capability enables efficient recovery and return-to-service for disabled aircraft, leveraging Delta TechOps' integrated maintenance network. Inventory management services are provided through dedicated logistics teams that handle material planning, , , , and , utilizing advanced technologies like Extended Warehouse Management for accuracy and efficiency. Complementing this, engineering consulting involves over 400 engineers offering 24/7 fleet support, operational reliability analysis, and customized solutions tailored to specialized client needs.

Workforce and Training

Technician Training Programs

Delta TechOps offers structured Aviation Maintenance Technician (AMT) pathways through its TechU program, which creates clear career routes for aspiring technicians by partnering with over 50 FAA-approved and Powerplant (A&P) schools across the . These partnerships provide students with 18- to 24-month programs that align with FAA requirements, including access to Delta-provided content, resources, and expertise from experienced technicians to facilitate hands-on learning and successful attainment of FAA A&P . Eligible applicants, aged 18 and older, can enroll in these partner schools and participate in Delta's TechOps Apprenticeship Program, gaining practical experience in under the of seasoned AMTs while completing their education. In-house training at Delta TechOps is led by FAA A&P-certified instructors who deliver customized instruction covering the required curricula for airframe and powerplant certification, ensuring compliance with FAA Part 145 regulations for repair stations. New hires undergo an intensive onboarding process, including a five-week orientation with specialized courses such as a five-day Electrical Systems and Aircraft Troubleshooting program focusing on test equipment and wiring diagrams, a six-week avionics training module on communication, navigation, and digital electronics systems, and line damage assessment training for composite structures on aircraft like the A350. These programs emphasize practical skills development, with technicians assisting in both technical and non-technical functions to build proficiency. Delta TechOps maintains partnerships with educational institutions, such as Central Georgia Technical College and Savannah Technical College, to offer specialized programs in and composites, integrating industry-specific standards and real-world exposure into the curriculum. Safety training is a core component, integrated into initial orientation and ongoing professional development through a suite of role-relevant programs that meet FAA compliance and promote a strong across operations. Continuous certification updates are provided to keep technicians current with regulatory changes and evolving aircraft technologies, supporting the skill-building needs of over 10,000 employees across maintenance and support roles as of 2024. As of 2025, Delta TechOps continues to expand its apprenticeship programs and employs a significant number of veterans to address workforce needs.

Engineering and

Delta TechOps provides comprehensive support for aircraft modifications, reliability analysis, and , leveraging a of over engineers to ensure operational efficiency and safety. This includes developing and approving repairs, Service Bulletins, and Airworthiness Directives to maintain fleet reliability across Delta's operations and third-party clients. teams also handle modifications, such as winglet installations, supporting more than modification and paint visits annually. For , Delta TechOps holds FAA and EASA Part 145 certifications, enabling the production of that aligns with standards for and alterations. To optimize parts availability, Delta TechOps employs advanced inventory management systems and predictive maintenance tools that integrate real-time data for proactive decision-making. These systems manage a $1.1 billion active inventory across 44 stockrooms on four continents, handling 150,000 monthly warehouse transactions to minimize downtime. Predictive tools, enhanced through partnerships like the 2019 Airbus alliance for airframe health monitoring and the 2021 addition of GE Digital for systems analytics, enable early detection of potential issues across single-aisle and widebody fleets. In 2025, the implementation of Trax's eMRO and eMobility solutions, selected to replace legacy systems and modernize maintenance and engineering processes for over 6,000 technicians. Complementing these efforts, the engineering team authors and administers technical publications, including manuals and procedures, while utilizing data analytics from an engineering solution database to monitor fleet health and drive reliability improvements.

Global Operations

International Reach and Facilities

Delta TechOps maintains a global network of maintenance stations, with key facilities in , , and supporting line maintenance and aircraft recoveries for international operations. As of May 2025, the division operates 11 international maintenance stations alongside 34 domestic ones. In , the company established its first line maintenance division in , , in 2013 to provide technical support across Delta's global system, with additional certifications in , , , and Trinidad & Tobago. This infrastructure enables rapid response to regional needs, including overnight checks and on-ground support for diverse fleets. In , Delta TechOps expanded its footprint through a long-term component care agreement with announced in October 2025, providing mechanical and avionics services for the airline's and A320/321 fleets. This partnership, building on initial support from 2023, strengthens the company's presence in the and underscores its role as a reliable MRO provider for European carriers. In , Delta TechOps has supported non-U.S. customers such as Japan's since a 2011 five-year agreement for CFM56-7B engine maintenance on aircraft, in partnership with Evergreen Aviation Technologies, with certified stations in Japan, , and . The company's international capabilities are further enhanced by its Disabled Aircraft Recovery Team (D.A.R.T.), a quick-response unit that deploys worldwide for aircraft on ground (AOG) situations, ensuring minimal downtime through specialized recovery services. Delta TechOps has also provided ongoing support to customers like , expanding in 2014 with an integrated component exchange and repair program for 12 aircraft. These efforts integrate with U.S. hubs to deliver seamless global MRO solutions.

Key Partnerships and Contracts

Delta TechOps has established several long-term agreements with major airlines to provide specialized maintenance services, enhancing its role as a key player in the global MRO sector. In October 2025, the company signed a multi-year component care contract with , the United Kingdom's third-largest airline, to deliver mechanical and avionics component maintenance for its and A320 fleets, thereby expanding Delta TechOps' European footprint and supporting Jet2.com's fleet growth. This agreement builds on an initial collaboration started in , underscoring the strategic value of ongoing partnerships in sustaining operational reliability for international carriers. Earlier partnerships include a 2014 expansion with , which integrated component exchange and repair programs for its fleet, covering engines, , and cabin systems, thereby providing comprehensive support beyond Delta's internal operations. Similarly, in 2011, Delta TechOps entered a five-year agreement with in , partnering with Evergreen Aviation Technologies to offer engine maintenance for CFM56-7B-powered aircraft, marking an early step in its Asian market penetration through collaborative third-party services. Recent contract wins have further bolstered Delta TechOps' third-party , with nine component MRO agreements valued at $225 million secured in the first quarter of 2023 alone, reflecting strong for its repair capabilities across diverse fleets. Additionally, in 2022, Delta TechOps gained authorization from as one of eight global OEM-approved providers for LEAP-1B maintenance, enabling it to this next-generation powerplant and positioning the company to capture a larger share of high-efficiency overhauls. These deals have driven significant revenue growth, with third-party revenue approaching $1 billion annually as of mid-2025, fueled by international expansions and the recovery in global .

Certifications and Compliance

Regulatory Approvals

Delta TechOps holds FAA Part 145 certification for its repair stations in (certificate number DALR026A) and Minneapolis-St. Paul (certificate number DAL2026A), authorizing a wide range of maintenance, repair, and overhaul activities on aircraft , engines, and components in compliance with Title 14 of the . This certification encompasses ratings for , powerplant, , radio, , and accessory work, enabling Delta TechOps to perform everything from routine inspections to complex overhauls for and third-party customers. For global operations, Delta TechOps maintains approvals from several international aviation authorities, including the European Union Aviation Safety Agency (EASA) under Part 145 (certificate numbers EASA.145.4380 for Atlanta and EASA.145.6599 for Minneapolis-St. Paul), which recognizes its facilities as approved maintenance organizations for EU-registered aircraft. In Japan, it is certified by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) pursuant to Article 20, Paragraph 2 of the Civil Aeronautics Law, allowing maintenance services for Japan Civil Aviation Bureau (JCAB)-licensed operators (certificate number 192). Brazil's National Civil Aviation Agency (ANAC) has granted Part 145 approval (certificate number 0604-04/ANAC) for engine, airframe, and accessory maintenance. Additional approvals include Argentina's Dirección Nacional de Aeronavegabilidad (DNA) Part 145 (certificate number 1B-318), Canada's Transport Canada Civil Aviation (TCCA) under FAA Maintenance Implementation Procedures (MIP) with certificate DALR026A, and China's Civil Aviation Administration (CAAC) Part 145 (certificate number F00100401) for airframe, engine, component, and line maintenance. These certifications extend to specific authorizations for heavy maintenance on , such as the and , supported by hangar facilities equipped for structural repairs, modifications, and painting under FAA, EASA, and equivalent international scopes. For engine shops, Delta TechOps is authorized to conduct overhauls and repairs on models including the CFM56, PW4000, and series, with capabilities exceeding 700 shop visits annually, covered by the same Part 145 ratings and international approvals. Delta TechOps' regulatory framework aligns with (ICAO) standards through bilateral aviation safety agreements (BASAs), such as the U.S.-EU BASA, ensuring reciprocity and harmonized oversight for cross-border services.

Quality and Industry Standards

Delta TechOps maintains rigorous quality management systems through ISO 9001 , which emphasize continuous improvement and customer satisfaction in operations. The company first achieved ISO 9001 for its component shop in 2008, marking a key milestone in standardizing processes for repair and overhaul activities. In 2011, this extended to its engine and shops, ensuring consistent quality across core MRO functions. To address environmental impacts in its operations, Delta TechOps joined the U.S. Environmental Protection Agency's (EPA) National Partnership for Environmental Priorities in 2009. This voluntary initiative committed the company to eliminating lead from machine shop operations, reducing and promoting sustainable practices in aviation maintenance. The partnership highlights Delta TechOps' proactive role in integrating into its quality framework. Delta TechOps holds multiple (OEM) authorizations that underscore its adherence to industry-leading standards for specialized repairs. Notably, it is one of eight global OEM-authorized providers for CFM International's LEAP-1B engines, enabling true powerplant under a CFM branded agreement. This authorization supports high-precision overhauls while aligning with stringent OEM quality protocols. Sustainability initiatives further demonstrate Delta TechOps' commitment to industry standards beyond compliance. In 2024, the company rolled out an enhanced foam engine wash program in collaboration with AeroCore Technologies, implemented at five domestic hubs across eight engine fleets. This innovation improves on-wing engine performance by more effectively removing contaminants than traditional water washes, projecting annual fuel savings of 4 million gallons and reduced emissions intensity.

Facilities and Infrastructure

U.S.-Based MRO Locations

Delta TechOps maintains its headquarters and primary MRO hub at Hartsfield-Jackson in , , where it operates three main Technical Operations Centers (TOC 1, 2, and 3). These facilities, which underwent significant expansions including in 1972 and 1982, cover a total land area of approximately 142 acres and support comprehensive heavy maintenance, engine overhauls, and component repairs for as well as over 150 third-party customers. In 2018, a 127,000-square-foot repair shop was opened for advanced engines like those on the and A330-900neo. The complex, one of North America's largest MRO operations, features advanced capable of handling widebody and , including specialized bays for painting and modifications. A key regional facility is located at Minneapolis-Saint Paul International Airport in , dedicated to heavy maintenance and serving as the A330 . This 350,000-square-foot center employs specialized technicians for in-depth checks, structural repairs, and upgrades on aircraft, enabling efficient support for Delta's transatlantic and long-haul operations. In addition to these major hubs, Delta TechOps operates 34 domestic line maintenance stations throughout the , strategically aligned with ' major hubs such as , , and . These stations provide quick-turn services, including overnight checks, minor repairs, and , contributing to the network's over 200,000 interventions annually to minimize downtime and ensure . Recent enhancements at the facilities include Delta TechOps' involvement in the 2024-2025 renovation of two historic hangars, originally built in the 1940s, to support the Delta Flight Museum's exhibits and preservation efforts. This project, completed in early 2025, integrated modern structural reinforcements while maintaining the hangars' aviation heritage, allowing the museum to reopen with updated displays on April 7, 2025. These U.S.-based locations form the core of Delta TechOps' , enabling seamless extensions to its .

Global Maintenance Network

Delta TechOps maintains a robust maintenance network to support its international customers and ' worldwide operations, comprising 11 international maintenance stations focused primarily on line services such as overnight checks, defect rectification, and engine troubleshooting. These stations enable rapid response capabilities, performing over 200,000 overnight checks annually across the network. The network leverages FAA-certified technicians with additional EASA approvals for operations in and , ensuring compliance with regional standards for aircraft types including , , and widebodies like the 767 and 777. A cornerstone of this network is the TechOps Mexico facility in , a with Grupo Aeromexico established in 2014, which serves as Latin America's largest MRO center with over 100,000 square meters of space and capacity to handle up to 11 aircraft simultaneously. This site specializes in heavy maintenance, component overhauls, and engine repairs, including support for GTF engines, supporting regional carriers and expanding Delta's footprint in the Americas. In , the network includes a dedicated line maintenance hangar at Tokyo's , opened in 2014, spanning 13,000 square meters and providing transit and overnight services for Delta's Boeing 747-400, 777, 767, 757, and fleet. To facilitate seamless global service, Delta TechOps holds key international certifications, including JCAB approval (No. 192) for , EASA Part-145 (No. 145.4380) for , and DNA approval (No. 1-B-318) for , allowing authorized repairs on foreign-registered . Recent expansions include long-term component care agreements, such as with UK-based in 2025, which bolster the network's reach in by providing repair and overhaul for narrowbody fleets without requiring new physical infrastructure. This integrated approach, combining owned facilities, leased stations, and strategic partnerships, positions Delta TechOps as a key player in the global MRO market, serving over 150 third-party customers.

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