Deutsche Aircraft has released video footage of the initial D328eco regional turboprop's final assembly ahead of its scheduled roll-out on 28 May. The footage shows part of the wing installation on the fuselage of the first test aircraft (TAC 1) at the German manufacturer's base at Oberpfaffenhofen airfield, near Munich. The single-piece wing appears to be complete with anti-icing surfaces, engine pylons, wing-tips, ailerons and landing flaps prior to its placement on top of the aircraft's fuselage. Also shown is the installation of landing gear on the aircraft, which bears the serial number 10001. The D328eco is an updated and stretched variant of the Dornier 328, which first flew in 1991 and was in production until 2000. Last year, Deutsche began the process of stretching an existing Dornier 328 fuselage, to serve as a first test aircraft for the programme. The D328eco is 2.2m longer than the original aircraft, and has 40 seats, compared with 32 on the Dornier 328. The fuselage, not previously used for production of a Dornier 328, had been in storage at Oberpfaffenhofen airfield since 2003, having been built by Fairchild Dornier. Prior to the test aircraft's manufacture, Deutsche selected Brazilian engineering company Akaer to produce the forward fuselage and Indian industrial group Dynamatic Technologies to supply the rear fuselage for D328eco serial production. German manufacturer Heggemann was chosen to supply the turboprop's landing gear, wingbox and engine support structure. Deutsche is in the process of constructing an assembly line at Leipzig airport. This will have capacity to produce 48 aircraft per year. Entry into service is targeted for the fourth quarter of 2027. Deutsche had initially foreseen service entry in 2025.

Boeing has provided an update on steps it has taken to improve its safety culture in the wake of several high-profile 737 Max accidents, and says it has seen a 220% increase in the number of reports made by employees through its confidential 'Speak Up' channel between 2023 and 2024. The US airframer says in its 2025 chief aerospace safety officer report that it has been "working to grow" its enterprise safety management system (SMS) over the past several years and believes it is now "on the right path" towards improving its safety culture. "Our perspective broadened after a serious accident in early 2024 involving a mid-exit door plug on a [Alaska Airlines] 737-9 that separated from the airplane during flight," writes Boeing's chief aerospace safety officer, Don Ruhmann, in the report. "We sought guidance – from our regulator, from our customers, from a panel of industry experts, from our own employees. We learned ways to accelerate the alignment, integration and adoption of the enterprise SMS deeper into our three business units and, importantly, far beyond our engineering function into our design, production and product support, as well as our supply chain." Boeing has previously rejected claims by a whistleblower that employee safety concerns have been suppressed. Addressing an April 2024 hearing before the US Senate's committee on homeland security and government affairs, Sam Salehpour, a Boeing quality engineer, alleged that the manufacturer had created a "culture that prioritises speed of production over safety and quality and incentivises management to overlook significant defects". Detailing some of the changes it has implemented, Boeing says in its report that it has submitted to the US Federal Aviation Administration (FAA) "a comprehensive set of actions to address recommendations made in an expert panel's safety review". The company's 'Speak Up' confidential and anonymous reporting channel has been "enhanced" in the past year, says Boeing, and reports submitted by employees are no longer dealt with by their direct managers. Instead, they are assigned to a third party for evaluation. Workers who submit reports through the channel also now have access to real-time status updates on their submissions. Total reports made through the tool increased by 220% from 2023 to 2024, says the airframer. Alongside efforts to make it easier for employees to report safety concerns, Boeing says it has widened the use of machine learning to help workers in "proactively identifying and addressing potential hazards". Boeing says it also "continues to make progress" on improving its Organisation Design Authorisation (ODA) programme – its internal division authorised by the FAA to perform aspects of aircraft certification. Boeing has been fined by the FAA in the past to settle enforcement cases related to its ODA programme. In its report, Boeing says it "continues to make progress on several fronts to strengthen the ODA programme and improve the independence of Boeing employees selected as ODA unit members who are authorised to perform certain functions on behalf of the FAA". It adds: "In co-ordination with the FAA, these initiatives focus on improving ODA oversight, its administration, the unit member appointment process and the development of skills. A significant portion of the initiatives focus on increasing the support system for ODA unit members and ensuring they can perform their delegated duties free from interference." The airframer says that a recent survey found that 8.9% of employees reported having experienced such interference in the last 12 months – down from 12.1% in 2023 and 13.9% in 2022. Ruhmann concludes his introduction to the report by noting that Boeing's teams "continued to make progress on global safety collaborations, data analytics, data-sharing initiatives, customer training and support programmes and other long-term investments that help raise the bar ever higher on safety". "This gives me confidence that we are on the right path on our safety journey," he asserts.

Azul has reaffirmed its view disclosed on 14 May in its first-quarter earnings release that it is making "significant progress" in improving its balance sheet. On 20 May, S&P Global Ratings downgraded Azul's issuer credit rating on the basis that the carrier's "very tight liquidity" increases the risk of default "within the next few months". Two weeks earlier, Fitch Ratings had downgraded its long-term foreign and local currency issuer default ratings (IDRs) for Azul, citing the carrier's "inability to effectively improve liquidity". Regarding S&P's ratings downgrade, Azul told Cirium on 21 May that as part of its usual financial management, it "constantly monitors alternatives that may contribute to strengthening its capital structure and preserving liquidity, with a focus on the long-term sustainability of its operations". It adds: "As previously mentioned in its quarterly earnings release issued on May 14, 2025, the company believes it has made significant progress in reducing its debt and leverage, and clarifies that it remains in ongoing discussions with its partners to optimise its capital structure and liquidity position." The Brazilian carrier says that it is "keeping a constructive dialogue with its key stakeholders" while conducting "its operations in the normal course of business". Azul ended the first quarter of 2025 with R6.7 billion ($1.19 billion) in total liquidity. Meanwhile, its gross debt rose by R987 million from the end of 2024's fourth quarter to R34.7 billion at 31 March 2025. It cites R3 billion raised through notes issued in January, in addition to an increase in lease liabilities related to new aircraft entering its fleet, for the rise in gross debt.