AAR delivered another outstanding quarter with 16% total sales growth (12% organic) to $795 million and a 31% rise in adjusted diluted EPS to $1.18, led by 29% Parts Supply growth and 32% organic growth in new parts distribution. The company closed two strategic acquisitions (ADI for $138M and HAECO Americas for $77M) and announced a third (ART for $35M), bringing net leverage back within its 2.0x-2.5x target range after an equity offering. Management raised full-year total sales growth guidance to approaching 17%.
Good afternoon, everyone, and welcome to AAR's fiscal year 2026 second quarter earnings call. We're joined today by John Holmes, Chairman, President, and Chief Executive Officer, and Sarah Flanagan, Interim Chief Financial Officer. The presentation we are sharing today as part of this webcast can be found under the Investor Relations section on our corporate website. Before we begin, I'd like to remind you that the comments made during the call include forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from the forward-looking statements. Accordingly, these statements are no guarantee of future performance. These risks and uncertainties are discussed in the company's earnings release and the risk factor section of the company's annual report on Form 10-K for the fiscal year ended May 31, 2025.
In providing the forward-looking statements, the company assumes no obligation to provide updates to reflect future circumstances or anticipated or unanticipated events. Certain non-GAAP financial information will be discussed during the call today. The reconciliation of these non-GAAP measures to the most comparable GAAP measure is set forth in the company's earnings release and slides. A transcript of this conference call will be available shortly after the webcast on AAR's website. At this time, we'd like to turn the call over to AAR's Chairman, President, and CEO, John Holmes.
Great. Thank you, Chris, and welcome, everyone, to our second quarter fiscal year 2026 earnings call. This was another outstanding quarter for AAR as we generated strong results across all areas of our business. We also completed two key strategic acquisitions and announced a third, which is expected to close in our fiscal fourth quarter. We are excited about these acquisitions as they enable us to accelerate our strategic objectives in two key areas of our business: our high-growth parts supply business segment, specifically new parts distribution, and in our Repair and Engineering segment. Turning to slide three, I would like to start with the key takeaways from the quarter. First, we delivered strong financial results with sales growth across all segments. Our 16% total sales growth was led by our parts supply business, which was up 29% in the quarter.
This growth was driven by above-market organic sales growth of 32% in our new parts distribution activities. This has been our fastest-growing activity, averaging more than 20% organic growth in each of the last four years. Our two-way exclusive distribution model resonates with OEMs and is helping to drive continued market share gains. Second, we strengthened our portfolio with two strategic acquisitions. We previously shared that we are committed to enhancing our offerings with targeted acquisitions that advance our strategy, and we are delivering on that promise. Third, we continue to capture new business across the company, including the renewal of key exclusive new parts distribution agreements, as well as new customers for Trax. In addition, we are continuing to enhance our digital capabilities, including through our newly announced partnership with Aeroxchange, the premier commercial aviation supply chain secure network provider.
Fourth, we are carefully managing our balance sheet to maintain strategic flexibility. And we ended the quarter with lower leverage, which is now within our long-term target range. Turning to slide four, we have a number of accomplishments within the quarter regarding our four strategic objectives, which are new business wins, operational efficiency, software and IP-enabled offerings, and disciplined portfolio management. I will highlight two of the objectives on this slide: new business wins, as well as software and IP-enabled offerings, with additional items to be discussed later in the presentation. First, our distribution model is unique in the industry in that nearly all of our distribution contracts, which typically range from five to ten years, are two-way exclusive, meaning we do not represent competing products in a given market, and our OEM partners do not use a competing distributor.
This model allows us to develop deeper relationships with our OEM partners, become technically proficient in their products, and help them take market share. This differs from a traditional distribution model where you acquire inventory and essentially act as a call center. We developed this approach more than ten years ago, and over the last several years, have seen a 100% renewal rate in our contracts. Speaking of renewals, during the quarter, we announced the renewal of two key exclusive contracts with Collins Aerospace and Arkwin Industries, which is a unit of TransDigm Group. We are also leveraging synergies between our repair offering and our distribution activities. During the quarter, Eaton, one of our key new parts distribution OEM partners, named our Amsterdam facility as an authorized service center to support their hydraulic components across Europe, the Middle East, and Africa.
This is a great example of the critical role our parts supply and Repair and Engineering businesses play in the aviation value chain and the synergies that exist within our operating activities. Within our Repair and Engineering business, we continue to make progress on our Oklahoma City and Miami airframe heavy maintenance expansions. Both expansions are progressing well and will come online in calendar 2026, adding approximately $60 million in annual revenue. During the quarter, Trax announced an agreement with Aeroxchange. Aeroxchange is a leading provider of secure commercial aviation supply networks, and this agreement will enhance our integration capabilities with our customers. Trax customers will gain access to Aeroxchange's extensive networks of parts, repair, inventory pool, and consignment service suppliers through Trax applications. This collaboration advances our strategy to make it easier for Trax customers to buy parts and repairs.
One more thing on Trax: we were excited to announce yesterday that Trax has been selected by Thai Airways, one of the most important Asian carriers, to provide its eMRO, Enterprise Resource Planning System, suite of e-mobility apps, and a cloud hosting solution. Turning now to slide five with more detail, I'll provide more detail on our recent acquisition of ADI. We acquired ADI in September for $138 million. ADI is a leading distributor of electronic components and assemblies, and it closely aligns with our strategic objective to expand our rapidly growing new parts distribution activities within our Parts Supply segment. As mentioned, new parts distribution has been growing at over 20% for the last four years, and ADI will add a new growth vector to this activity. The addition of ADI moves AAR up the value chain, up the supply chain, through ADI's production-facing distribution channel.
This means we will now supply parts to our OEM partners for use in their own manufacturing. We plan to leverage our OEM relationships to grow ADI's business. With approximately $150 million in sales over the last 12 months and a team of 400 skilled employees, we are increasing our access to a substantial and rapidly growing total addressable market. Additionally, over time, we see opportunities to improve margins through higher volumes and operational efficiencies. ADI has performed above expectations in the first few months, and the integration is progressing as planned. Turning now to slide six, I would like to provide an overview of our acquisition of HAECO Americas. We acquired HAECO Americas in November for $77 million, extending our leadership position in airframe heavy maintenance.
Through our investments in proprietary systems and processes, we've achieved industry-leading quality and turnaround times and have become the most sought-after airframe heavy maintenance provider in North America. While new parts distribution has been our fastest-growing business, airframe heavy maintenance has been the largest contributor to our margin expansion over the last four years. This acquisition builds on that success. HAECO Americas operates facilities in Greensboro, North Carolina, and Lake City, Florida. As part of the integration process, we will be applying our successful operating model to these facilities to improve their operational and financial performance. This process will take 12month -18 months and has three key elements: revenue optimization, cost reduction and process improvements, and footprint rationalization. With respect to optimizing revenue, as part of the acquisition, we announced approximately $850 million of new contract awards with several customers over five years.
These contracts will replace the existing revenue base at HAECO and more closely match the key terms we have with our current other airframe heavy maintenance customers. With respect to cost reduction and process improvements at the HAECO facilities, our actions to adjust the cost structure to match the new revenue base are already well underway. Additionally, over time, we will deploy our proprietary processes and systems to the facilities to achieve the same quality and efficiency levels we have achieved at our other airframe heavy maintenance facilities. Regarding footprint rationalization, we will be exiting our heavy maintenance site in Indianapolis over the next 18 months and transferring that work to other AAR sites, with much of it moving to the HAECO facilities. As a result of our lease agreement with the airport, Indianapolis is our highest-cost location. Additionally, labor availability has been a persistent challenge.
By exiting this high-cost location when the lease expires and redistributing the work throughout the rest of our network, we will further improve the overall margin profile of our Airframe heavy maintenance activities. As mentioned, all of these actions will take 12 months -18 months to complete and will initially be margin-dilutive. However, we expect the margin to steadily improve as we move through the integration process. Once this work is complete, we will have added approximately 40% additional capacity to our network, lowered our fixed cost, and gained access to a more predictable labor supply. Most importantly, we have the support and contractual commitments from our customers to execute this plan. Turning now to Slide seven, we also recently announced an agreement to acquire Aircraft Reconfig Technologies, or ART, for $35 million. ART specializes in reconfiguring passenger aircraft interiors, providing project management, engineering, and certification solutions.
This is an exciting addition to our airframe heavy maintenance capabilities that expands our ability to perform complex aircraft modification work while bringing proprietary solutions and a robust IP portfolio. It also brings engineering and self-certification capability that can accelerate our parts PMA development efforts. We expect this acquisition to close in the fourth quarter of this fiscal year, and we look forward to welcoming the skilled team to AAR. With that, I'll turn it over to Sarah to discuss the results in more detail.
Thanks, John. Looking now to slide eight, total sales in the quarter grew 16% year-over-year, including 12% organic growth to $795 million. We drove growth in each of our segments with particular strengths in parts supply. Sales growth to government customers increased 23%, and sales to commercial customers increased 13% over the same period last year. For the quarter, total commercial sales made up 71% of total sales, while government sales made up the remaining 29%. Compared to the same quarter last year, adjusted EBITDA increased 23% to $96.5 million, and adjusted EBITDA margins increased to 12.1% from 11.4%. Adjusted operating income increased 28% to $81.2 million, with adjusted operating margins improving 100 basis points from 9.2% to 10.2%. Our focus on improving operating efficiencies, strong performance in our parts supply segment, and government programs were key drivers of the improved margins.
The combination of sales growth and margin expansion resulted in a year-over-year adjusted diluted EPS increase of 31% to $1.18 a share from $0.90 a share in the same quarter last year. With that, I'll turn to the detailed results by segment, starting with Parts Supply on slide nine. Total Parts Supply sales grew 29% from the same quarter last year to $354 million. We once again saw above-market growth in our new parts distribution activities, which grew 32% as compared to last year, excluding the contributions from ADI. Second quarter Parts Supply adjusted EBITDA of $46.5 million was higher by 37%, and adjusted EBITDA margin increased to 13.2% from 12.4% in the same quarter last year. Adjusted operating income rose 35% to $42.8 million, and adjusted operating margins also increased from 11.5% to 12.1%.
Higher margins were largely driven by increased operating leverage, as we are successfully scaling our business while maintaining cost discipline. Turning now to slide 10 for Repair and Engineering. Total sales increased 7% year-over-year to $245 million. Demand remained strong for our airframe heavy maintenance activities, and we continue to drive efficiency to increase throughput. Adjusted EBITDA of $31.2 million was 1% higher than in the same period last year, while adjusted EBITDA margins decreased to 12.8% from 13.5%. Second quarter adjusted operating income of $27.4 million remained consistent to the same period last year, with adjusted operating margins decreasing to 11.2% from 12.0%. This was largely due to the mix of work within our airframe heavy maintenance network, one-time costs and component repair, as well as a slight impact on the HAECO Americas acquisition, as we only had one month of HAECO operations included in the quarter.
As John mentioned earlier, we have initiated our integration activities and expect to improve their operating margin over the next 12 months to 18 months, taking them from low single-digit EBITDA margin to margins in line with our current Repair and Engineering margins. Going forward, we expect to continue to drive margin expansion in this segment through the improved performance of our two newly acquired HAECO facilities, driven by integration and synergy actions, continued rollout of our paperless hangar initiatives, increased volume into our component repair facilities, and the hangar capacity expansions that are in process. Looking now to Slide 11, Integrated Solutions sales increased 8% year-over-year to $176 million, primarily driven by government programs. Integrated Solutions adjusted EBITDA of $18.5 million was 50% higher than the same period last year.
Adjusted operating income of $15.1 million was 82% higher, with the adjusted operating margin increasing from 5.1% to 8.6%. Higher margins were driven by favorable mix and certain government contracts achieving key program milestones during the quarter. Turning to slide 12 of the presentation, during the quarter, our net debt leverage decreased from 2.82 times in the first quarter to 2.49 times, achieving our target range of 2.0 to 2.5 times. This decrease was driven by double-digit earnings growth, continued balance sheet management, and our equity offering. Turning to slide 13 of the presentation, with respect to our capital allocation strategy, our priorities remain unchanged. First, we will continue to fund organic growth in each of our three core areas: our high-growth new parts distribution activities, our airframe heavy maintenance and component repair activities, and our software and IP-enabled offerings.
Second, we'll allocate capital to M&A opportunities to meet our strategic and financial criteria and support our core segments. The three acquisitions we have discussed today - ADI, HAECO Americas, and ART - are all well aligned with our stated criteria and will help to accelerate our growth strategy of bringing our unique platform to market as a premier independent provider of aviation parts, repair, and software. As we look to Q3, we expect to be cash positive in the quarter. We also expect interest expense to be slightly lower than the prior quarter. With that, I'll turn it back to John.
Great. Thank you, Sarah. Turning to slide 14, we have an update on our outlook for Q3 and for the rest of our fiscal year. For Q3, we're expecting total sales growth in the range of 20%-22%, which includes the impact of our two recent acquisitions. For reference, organic sales growth for Q3 is expected to be 8%-11%, which excludes the divestiture of landing gear, as well as the impact of the ADI and HAECO acquisitions. For margin, we expect Q3 adjusted operating margin of 9.8%-10.1%. For the full fiscal year, given our strong performance in the first half and including our two recent acquisitions, we expect total sales growth approaching 17% and organic sales growth approaching 11%. In closing, I would like to highlight AAR's strength as a business and as an investment.
We are well positioned in the most attractive segments of a growing aviation aftermarket. We have a broad, unique platform as a provider of parts, repair, and software that is unmatched in our industry. Our complete range of aftermarket solutions work together to drive a sustainable, self-reinforcing cycle of growth. We have enhanced our portfolio with high-quality acquisitions, and we are delivering stronger growth and higher margins. I would like to thank our talented team of global employees, particularly Sarah, for their dedication, as they deliver excellence, quality, safety, and the critical work that we do for our customers every day. I would also like to thank our customers and our shareholders for your continued interest and support of AAR. And with that, we'll turn it over to the operator for questions.