The Federal Aviation Administration (FAA) has officially cleared the McDonnell Douglas MD-11 freighter fleet to return to the skies. According to reporting by FreightWaves, the agency approved Boeing’s maintenance and inspection protocols on May 11, 2026, effectively ending a six-month global grounding of the aircraft type.

The worldwide grounding was initiated in November 2025 following the tragic crash of UPS Flight 2976 in Louisville, Kentucky, which claimed 15 lives. With the new hardware fixes validated by regulators, operators are taking divergent paths. FedEx Express has immediately resumed commercial flights, while UPS has opted to retire its MD-11 fleet entirely.

We at AirPro News recognize the profound impact this grounding had on the global air cargo network, particularly during the 2025 peak holiday shipping season. While the return of the MD-11 brings operational relief to remaining operators, the aging aircraft continues to face intense political and regulatory scrutiny.

The Engineering Fix and Return to Service

Addressing the Structural Failure

The grounding stemmed from severe structural failures identified during the preliminary investigation of the UPS crash. According to FreightWaves, the National Transportation Safety Board (NTSB) found fatigue cracks in the left pylon’s aft mount lug and spherical bearing assembly. These cracks developed over numerous flights, culminating in an overstress failure that caused the engine to tear free from the wing.

To resolve the issue, Boeing, which acquired McDonnell Douglas in 1997, developed a highly invasive hardware fix. The approved protocol requires the installation of new spherical bearings in the aft mounts of each side engine pylon, alongside comprehensive inspections of the aft bulkhead.

“After extensive review, the FAA approved Boeing’s protocol for safely returning MD-11 airplanes to service,” the agency stated.

FedEx Express Resumes Operations

FedEx Express, currently the largest remaining operator of the MD-11, moved swiftly to implement the required fixes. FreightWaves reports that FedEx maintenance teams removed pylons from parked aircraft and shipped them to hubs in Memphis and Indianapolis for the necessary bearing replacements.

Following these modifications, FedEx conducted a successful test flight on May 9, 2026, flying from Memphis to Huntsville, Alabama, and back. By Sunday, May 10, the carrier operated its first commercial MD-11 flights in six months, servicing routes from Memphis to Los Angeles and Miami. FedEx plans to gradually phase its 28 remaining MD-11s back into service on a tail-by-tail basis, with intentions to operate the jets until 2032 to meet ongoing cargo demand.

Diverging Airline Strategies and Industry Impact

UPS and Western Global Responses

The extended grounding forced major logistical pivots across the air cargo sector, prompting airlines to activate spare aircraft and shift packages to ground networks. However, the long-term response to the MD-11’s viability has been sharply divided among the three remaining U.S. operators.

Unlike FedEx, UPS accelerated its fleet modernization plans in the wake of the crash. According to FreightWaves, UPS announced in January 2026 that it was permanently retiring its entire fleet of 28 MD-11s. Meanwhile, Western Global Airlines, a smaller Florida-based cargo carrier, was forced to indefinitely furlough its 147 MD-11 pilots in November 2025 due to the grounding. The airline has not yet publicly disclosed its future plans for the aircraft.

AirPro News analysis

We note that the divergence in fleet strategies between FedEx and UPS highlights a broader industry transition. UPS’s decision to permanently retire the MD-11 underscores a rapid shift toward newer, more fuel-efficient twin-engine freighters, minimizing the risk associated with maintaining aging tri-jet airframes. Conversely, FedEx’s commitment to flying the MD-11 until 2032 emphasizes the aircraft’s unique payload and volumetric capabilities, which remain difficult to replace in the short term without massive capital expenditure. The grounding’s timing during the 2025 peak season exposed the fragility of relying on older aircraft types, likely accelerating long-term fleet renewal discussions across the global cargo sector.

The UPS Flight 2976 Tragedy and Ongoing Scrutiny

Remembering the Louisville Crash

The catalyst for the grounding remains one of the deadliest cargo-aircraft accidents in U.S. history. On November 4, 2025, UPS Flight 2976 crashed seconds after takeoff from Louisville Muhammad Ali International Airport. Flight data and surveillance video showed the left engine and pylon separating during the takeoff rotation, with the aircraft reaching an altitude of only 30 to 100 feet before impacting an industrial area.

The disaster resulted in 15 fatalities, including all three crew members and 12 individuals on the ground, one of whom succumbed to severe injuries on December 25, 2025. An additional 23 people on the ground were injured.

Political Pushback and Upcoming Hearings

Despite the FAA’s clearance, the MD-11 remains under a microscope. FreightWaves reports that on May 1, 2026, U.S. Representative Morgan McGarvey (D-KY) sent a letter to the FAA demanding the permanent grounding of the aircraft, citing a documented history of mechanical issues.

Furthermore, the NTSB has scheduled a two-day public investigative hearing regarding the crash for May 19–20, 2026, in Washington, D.C. Investigators are expected to review how UPS applied previous inspection instructions relayed by Boeing in 2011 regarding similar structural components. Litigation is also ongoing, with lawsuits filed against UPS, Boeing, and the late pilot’s estate over the fatal accident.

Frequently Asked Questions

Why was the MD-11 freighter fleet grounded?

The FAA grounded the global MD-11 fleet in November 2025 following the fatal crash of UPS Flight 2976 in Louisville, Kentucky. The NTSB determined the crash was caused by an overstress failure resulting from fatigue cracks in the left engine pylon’s aft mount lug and spherical bearing assembly.

What is the approved fix for the MD-11?

Boeing developed a hardware fix that requires highly invasive inspections and the installation of new spherical bearings in the aft mounts of each side engine pylon, as well as inspections of the aft bulkhead.

Are all airlines resuming MD-11 flights?

No. While FedEx Express has implemented the fixes and resumed commercial flights with plans to operate the aircraft until 2032, UPS opted to permanently retire its entire fleet of 28 MD-11s in January 2026.

Sources: FreightWaves

This article summarizes reporting by Reuters. Additional details are sourced from official aviation authority statements and public remarks.

On Monday, May 11, 2026, a Turkish Airlines Airbus A330 experienced a minor fire in its landing gear upon arriving in Kathmandu, Nepal. According to reporting by Reuters, the incident forced a temporary closure of the airport, but all individuals on board were safely evacuated without serious injury.

The flight, operating as TK726 from Istanbul, was carrying 277 passengers and 11 crew members when the emergency occurred at Tribhuvan International Airport (TIA). Emergency responders quickly contained the situation, preventing a major disaster at Nepal’s primary international gateway.

We are closely monitoring the ongoing technical inspections and the cascading flight disruptions resulting from the runway closure. The swift action by airport fire crews ensured that the situation was neutralized rapidly, with only minor injuries reported during the emergency slide evacuation.

Incident Details and Evacuation

Emergency Response on the Runway

The incident unfolded at approximately 6:45 AM local time. As the Airbus A330-300 touched down on the runway, ground observers and airport officials noted thick grey smoke and visible flames emanating from the right rear landing gear and tyres. Airport security and fire services were immediately dispatched to intercept the aircraft.

SP Rajkumar Silawal of the Airport Security Office confirmed the rapid deployment of emergency services to the scene, noting that the runway was temporarily closed for technical inspection.

“Using the fire engine, it has been contained. All the passengers are safely evacuated,”

, SP Rajkumar Silawal, Airport Security Office

The evacuation process utilized the aircraft’s emergency deployment slides. While all 288 people on board escaped the aircraft safely, authorities noted that a few passengers sustained minor hand injuries during the rapid descent. The passenger manifest notably included four children and several United Nations officials traveling to the capital. Additionally, officials confirmed the aircraft’s cargo hold was transporting human remains alongside standard baggage.

Official Statements and Technical Assessments

Airline and Authority Perspectives

The Civil Aviation Authority of Nepal (CAAN) provided immediate updates on the aircraft’s status following the evacuation. CAAN spokesperson Gyanendra Bhul stated that the fire in the right rear tyre was successfully doused and the aircraft was subsequently towed to a taxiway, where it remains grounded for a thorough inspection.

Turkish Airlines also addressed the malfunction promptly. Yahya Ustun, the airline’s Senior Vice President of Communications, released a statement on the social media platform X. He noted that smoke was observed in the landing gear while taxiing and that technical inspections had been initiated immediately.

“Initial assessments indicate that the smoke was caused by a technical malfunction in a hydraulic pipe,”

, Yahya Ustun, Turkish Airlines SVP of Communications

Ustun further confirmed that the airline is organizing an additional flight to accommodate passengers who were scheduled for the return leg from Kathmandu to Istanbul.

Operational Impact and Historical Context

Flight Disruptions at Tribhuvan International

The emergency response necessitated the closure of TIA’s sole runway for approximately one hour. This shutdown caused significant cascading delays across the region’s airspace. Incoming flights from carriers such as Air India, Air Arabia, Drukair, flydubai, and Nepal Airlines were either placed in holding patterns in Kathmandu airspace or diverted to alternate airports until the runway was cleared.

AirPro News analysis

We note that Nepal’s mountainous terrain and unpredictable weather already make Tribhuvan International Airport a highly challenging environment for commercial aviation. This incident adds to a recent pattern of operational challenges for Turkish Airlines in the South Asian region. In February 2026, another Turkish Airlines flight departing Kathmandu suffered an engine fire, forcing an emergency landing in Kolkata, India.

Furthermore, aviation observers will recall a high-profile March 2015 incident where a Turkish Airlines jet skidded off the runway at TIA in dense fog. While there were no injuries in that event, it closed the airport for several days, and the stranded aircraft was eventually converted into an aviation museum. The swift containment of this latest landing gear fire highlights significantly improved emergency readiness and ground response at the airport, preventing a repeat of the prolonged 2015 operational shutdown.

Frequently Asked Questions (FAQ)

When did the Turkish Airlines fire in Kathmandu occur?

The incident occurred on the morning of Monday, May 11, 2026, at approximately 6:45 AM local time.

Were there any casualties on Flight TK726?

No fatalities or serious injuries occurred. All 277 passengers and 11 crew members were safely evacuated. A few individuals sustained minor injuries, such as scraped hands, while using the emergency evacuation slides.

What caused the fire on the Airbus A330?

According to statements from Turkish Airlines, initial technical assessments suggest the smoke and fire were caused by a malfunction in a hydraulic pipe near the right rear landing gear.

Sources

• Reuters
• Official statements from the Civil Aviation Authority of Nepal (CAAN)
• Public remarks from Turkish Airlines Communications

This article is based on an official press release from ACIA Aero Leasing.

ACIA Aero Leasing Closes Sale and Leaseback Deal with Braathens for Two ATR 72-600s

On May 7, 2026, ACIA Aero Leasing announced the successful closing of a sale and leaseback (SLB) transaction with Braathens Regional Airlines. The agreement covers two ATR 72-600 passenger turboprop aircraft. According to the official press release, these aircraft are currently deployed on regional routes across Sweden and Northern Europe, operating exclusively on behalf of Scandinavian Airlines (SAS).

This transaction provides Braathens with capital liquidity while allowing the carrier to retain uninterrupted use of the aircraft. We note that this financial maneuver follows a period of profound transformation for Braathens, which recently restructured its business to operate as a dedicated wet-lease provider for SAS.

The deal not only bolsters Braathens’ balance sheet but also expands ACIA Aero Leasing’s footprint in the Nordic regional aviation market, reinforcing the lessor’s commitment to fuel-efficient turboprop operations.

Transaction Details and Fleet Impact

Expanding the ACIA and Braathens Partnership

The sale and leaseback agreement involves two specific ATR 72-600 aircraft, identified by Manufacturer Serial Numbers (MSNs) 1348 and 1357. By selling these assets to ACIA and immediately leasing them back, Braathens unlocks capital without sacrificing the operational capacity required to fulfill its network obligations to SAS.

According to the press release, this transaction increases ACIA’s leased fleet with Braathens to three aircraft. Furthermore, it brings ACIA’s total global ATR portfolio to 38 aircraft. Industry data indicates that ACIA, headquartered in Ireland, manages a broader global portfolio of nearly 70 regional passenger and freighter aircraft across more than 22 countries, while Braathens operates a core fleet of 17 ATR 72-600s.

Company leadership from both organizations highlighted the collaborative nature of the agreement. Mick Mooney, Chief Executive Officer of ACIA Aero Leasing, emphasized the lessor’s commitment to the airline’s ongoing transition:

“We are delighted to strengthen our relationship with Braathens through this SLB transaction on two ATR 72-600s. The transaction further demonstrates our support for Braathens as they continue to transform their business.”

Mia Jakobsson, Head of Fleet Management & PMO at Braathens, echoed this sentiment, pointing to the importance of lessor support during the airline’s recent operational shifts:

“We greatly appreciate ACIA’s continued support throughout the changes Braathens has undergone in recent times. These transactions are a testament to the strong cooperation between our teams, and we value the partnership as our joint business continues to grow.”

Braathens’ Strategic Pivot and Restructuring

Transition to a Pure ACMI Model

The context surrounding this SLB transaction is rooted in Braathens’ recent strategic overhaul. Industry research shows that in September 2024, Braathens announced it would cease its own scheduled passenger operations out of Stockholm Bromma by the end of that year, citing a sluggish post-pandemic domestic market. In its place, the airline secured a seven-year, SEK 6 billion (approximately $590 million) ACMI (Aircraft, Crew, Maintenance, and Insurance) contract with SAS, which took effect on January 1, 2025. Under this arrangement, Braathens utilizes its ATR fleet to feed major SAS hubs, primarily Stockholm Arlanda and Copenhagen Kastrup.

However, transitioning to a pure ACMI model required significant financial maneuvering. Between late 2025 and early 2026, Braathens initiated a court-supervised financial reorganization for its parent company and its ATR operating subsidiary to reduce debt and renegotiate existing contracts. During this same period, its Airbus subsidiary, Braathens International Airways, filed for bankruptcy.

To ensure the stability of its vital regional feeder network, SAS stepped in with a financial lifeline. In February 2026, SAS provided Braathens with a SEK 50 million (approximately €4.75 million) loan, securing exclusive access to Braathens’ ATR capacity and aiding the regional carrier through its restructuring process.

AirPro News analysis

We view this sale and leaseback transaction as a textbook example of how airlines utilize asset financing to navigate complex corporate restructurings. SLB transactions are a vital financial tool; by monetizing owned assets, airlines like Braathens can generate immediate cash flow to cover operational costs or service debt without disrupting their flight schedules or jeopardizing major contracts, such as the lucrative SAS ACMI agreement.

Furthermore, this deal underscores two broader trends in the European aviation sector. First, there is a clear move toward regional aviation consolidation and outsourcing. Major flag carriers like SAS are increasingly relying on specialized wet-lease partners to operate lower-demand regional routes, optimizing operating costs while maintaining network breadth. Second, the transaction highlights the enduring resilience of the turboprop market. The ATR 72-600 burns up to 40% less fuel and emits 40% less CO2 compared to similar-sized regional jets. In the Scandinavian market, where environmental regulations are stringent and sustainability goals are paramount, the operating economics and environmental profile of the ATR 72-600 make it a highly attractive asset for both operators and lessors.

Frequently Asked Questions

What is a Sale and Leaseback (SLB) transaction?

A sale and leaseback is a financial transaction where an airline sells an aircraft it owns to a leasing company and immediately leases it back. This allows the airline to free up capital tied up in the asset while continuing to operate the aircraft without interruption.

Why did Braathens restructure its business?

Facing a slow recovery in the domestic market, Braathens discontinued its independent scheduled passenger flights in late 2024. The airline pivoted to a wet-lease (ACMI) model, signing a major contract to operate flights exclusively for SAS. The costs associated with this transition led to a court-supervised financial reorganization in late 2025 and early 2026.

Sources

• ACIA Aero Leasing Press Release
• Industry Research Data