Commercial Aviation
Boeing Completes Final Human Factors Testing for 777-9 Aircraft
Boeing concludes final human factors tests for 777-9, advancing FAA certification with pilots flying in Phase 4A. Lufthansa launch set for 2027.
This article is based on an official press release from Boeing.
Boeing has reached a critical milestone in the certification journey of its 777-9 aircraft, successfully concluding the fourth and final phase of simulator-based human factors evaluations. According to an official company release, this multi-year testing program involved over 200 airline pilots globally and serves as a foundational step toward the aircraft’s anticipated 2027 entry into service.
Concurrently, the 777-9 has advanced into Phase 4A of the Federal Aviation Administration (FAA) Type Inspection Authorization (TIA). As detailed in the provided research data, this phase marks the first time FAA pilots are directly flying and evaluating the aircraft in real-world conditions. Industry observers view this transition as a strong signal that the platform is maturing from a developmental prototype into a near-service-ready commercial aircraft.
With Lufthansa slated as the launch customer, the successful completion of these rigorous evaluations is essential for Boeing to meet its delivery targets and demonstrate compliance with modernized aviation safety standards.
Navigating New Regulatory Realities
The Post-MAX Certification Landscape
The 777-9, the world’s largest twin-engine jet, is the first Boeing commercial aircraft to undergo simulator evaluations with airline pilots to demonstrate compliance with stringent new FAA human factors regulations. According to the provided research report, these updated guidelines were implemented following the passage of the Aircraft Certification, Safety & Accountability Act of 2020, a legislative response to the 737 MAX tragedies of 2018 and 2019.
Human factors engineering focuses on optimizing how humans interact with complex systems. In the context of aviation, this requires designing interfaces, alerts, and controls that ensure pilots can safely and intuitively operate the aircraft, particularly during high-stress emergencies or unexpected system malfunctions. Boeing’s adherence to these new standards is a major test of the company’s revamped safety and engineering protocols.
Inside the Human Factors Testing Program
Global Scope and “Naïve” Methodology
The human factors evaluation was an exhaustive effort spanning four phases across seven global locations, including Dubai, Frankfurt, Gatwick, Hong Kong, Miami, Seattle, and Singapore. According to Boeing’s data, the final phase (Phase 4) took place in the company’s Seattle simulator with crews from five customer airlines.
The scale of Phase 4 was substantial. Boeing reports that the testing encompassed approximately 70 distinct flight scenarios over 118 days. The execution of these simulated flights was supported by over 800 hours of preparation across more than 150 planning sessions. Ultimately, the evaluations generated more than 10,000 observer notes, which Boeing will submit to the FAA to support final certification.
To ensure the validity of the data, Boeing employed a “naïve” testing methodology. During the simulated flights,which ranged from full gate-to-gate routes to specific partial scenarios,engineers intentionally introduced surprise system malfunctions. The participating crews had no prior knowledge of what was being tested, allowing observers to document their true, unbiased reactions, decision-making processes, and checklist execution in real-time.
“This is the first time we’re taking a look at the flight deck in its entirety against these new human factors regulations. Each crew was completely naïve to what we were testing. We wanted their true, unbiased reaction to a particular situation.”
Capt. Tanner Sims, Boeing Engineering Test Pilot, via Boeing press release
“You could think of Phase 4 as the graduation event for this flight deck.”
Arjun Rao, Boeing Flight Deck Engineering Manager, via Boeing press release
Flight Deck Innovations and Real-World Milestones
Modernizing the 777-9 Cockpit
While the 777-9 flight deck is designed to maintain high commonality with the existing 777 and 787 Dreamliner to streamline pilot training and transition, it introduces several modern advancements. According to the provided research, these innovations include large-format displays featuring touchscreen capabilities, optional dual head-up displays (HUDs), and a redesigned, ergonomic pilot seat.
Additionally, the flight deck features a unique control and indicator system for the 777-9’s signature folding wingtips, which represent the first-ever folding wingtip design on a commercial transport aircraft.
Entering Phase 4A TIA
In tandem with the simulator evaluations, the 777-9 program recently achieved a significant real-world milestone with the FAA’s formal approval of Phase 4A of the Type Inspection Authorization (TIA) testing campaign. Up to this point, flight testing was primarily conducted by Boeing pilots under FAA observation. Phase 4A marks a critical shift, as FAA regulators are now entering the cockpit to directly fly and evaluate the aircraft as a complete operational system.
AirPro News analysis
At AirPro News, we note that the rigorous nature of the 777-9’s human factors testing and the FAA’s hands-on approach in Phase 4A highlight the post-MAX reality of aviation certification. Regulators are demanding unprecedented levels of independence, transparency, and empirical proof that aircraft systems account for human psychology and behavior during crises.
For Boeing, successfully passing these stringent evaluations is not merely about bringing a new flagship aircraft to market. It is a vital step in proving to airlines, regulators, and the flying public that the manufacturer’s engineering and safety culture has fundamentally evolved. The generation of over 10,000 observer notes from unbiased, “naïve” pilot testing demonstrates a commitment to data-driven safety validation that will likely become the new standard for all future commercial aircraft certifications.
Frequently Asked Questions (FAQ)
- What are human factors in aviation?
Human factors engineering involves designing aircraft interfaces, alerts, and controls to optimize how pilots interact with the system, ensuring safe and intuitive operation during both routine flights and emergencies. - When is the Boeing 777-9 expected to enter service?
According to Boeing’s current projections, the 777-9 is targeted for its first commercial delivery in 2027, with Lufthansa serving as the launch customer. - What is Phase 4A TIA?
Phase 4A of the Type Inspection Authorization (TIA) is a certification milestone where FAA pilots directly fly and evaluate the aircraft in real-world conditions, rather than solely observing manufacturer test pilots.
Sources
Photo Credit: Boeing
Aircraft Orders & Deliveries
Riyadh Air Orders 31 A350-1000s and 67 Boeing 787s
Riyadh Air firms up A350-1000 and 787 Dreamliner orders at Farnborough 2026, targeting 100 global destinations by 2030.
Saudi Arabian startup carrier Riyadh Air (RX) has expanded its future widebody fleet by firming up an order for six additional Airbus A350-1000 aircraft at the Farnborough International Airshow on July 20, 2026. The agreement exercises purchase rights from a 2025 commitment for up to 50 airframes, bringing the airline’s total firm backlog for the European manufacturer’s largest twin-engine jet to 31 aircraft.
In a press release issued during the airshow, Airbus confirmed the transaction and noted that Riyadh Air will become the first operator of the A350-1000 in Saudi Arabia. The acquisition aligns with the carrier’s mandate to support the national Vision 2030 strategy, which targets serving more than 100 global destinations by the end of the decade.
Expanding the Airbus widebody footprint
The Airbus A350-1000 offers a maximum non-stop range of 9,700 nautical miles (18,000 kilometers), providing the operational capability required for Riyadh Air’s planned ultra-long-haul services. Airbus states the aircraft delivers a 25 percent advantage in fuel burn, operating costs, and carbon emissions compared to previous-generation widebody aircraft.
Riyadh Air Chief Financial Officer Adam Boukadida stated that the finalized order reflects continued confidence in the airline’s growth trajectory and the broader Saudi aviation sector.
“Increasing our A350-1000 commitment to 31 aircraft strengthens the foundation of our future network and supports our ambition to serve more than 100 global destinations by 2030 while delivering a premium guest experience,” Boukadida said.
Airbus Executive Vice President of Sales for Commercial-Aircraft Benoît de Saint-Exupéry added that the commitment highlights the aircraft’s efficiency and range. He noted the A350-1000 will play a central role in positioning Saudi Arabia as a leading international aviation hub. As of the end of June 2026, Airbus had recorded 1,595 firm Orders for the A350 family from 68 customers worldwide.
Concurrent Boeing 787 Dreamliner expansion
The Airbus finalization occurred alongside a separate widebody order placed with The Boeing Company. According to reporting by Al Arabiya, Riyadh Air also confirmed an order for 28 additional Boeing 787 Dreamliner aircraft at the Farnborough event on July 20.
This separate agreement introduces the Boeing 787-10 variant to the carrier’s fleet. Following the announcement, Riyadh Air’s total firm commitment for the Dreamliner family stands at 67 aircraft.
Riyadh Air Chief Executive Officer Tony Douglas told Al Arabiya that the introduction of the 787-10 and the expanded Dreamliner backlog marks another significant milestone in the airline’s journey toward its 2030 network goals. The carrier recently opened ticket sales for its initial overseas routes as it prepares for the launch of commercial operations.
AirPro News analysis
We view Riyadh Air’s dual widebody orders at Farnborough as a clear signal of the carrier’s aggressive timeline and robust capital backing. By splitting its high-capacity, long-haul requirements between the Airbus A350-1000 and the Boeing 787-10, the airline mitigates delivery risk in an era of constrained aerospace supply chains. Securing 31 firm A350-1000s and 67 Boeing 787s provides the necessary metal to rapidly scale a global network from scratch. However, the operational complexity of inducting two distinct widebody types simultaneously will require substantial training, tooling, and maintenance infrastructure investments prior to the Launch of commercial flights.
Sources: Airbus
Photo Credit: Airbus
Commercial Aviation
IndiGo Signs Record 1000 LEAP-1A Engine MoU with CFM
IndiGo and CFM International signed an MoU at Farnborough 2026 for 1,000+ LEAP-1A engines to power 510 A320neo Family jets.
Indian low-cost carrier IndiGo and CFM International signed a Memorandum of Understanding (MoU) on July 20, 2026, for more than 1,000 LEAP-1A engines to power 510 Airbus A320neo Family aircraft. The agreement, finalized at the Farnborough International Airshow, represents the largest single order for LEAP engines in the manufacturer’s history.
The procurement completes the engine selection for IndiGo’s outstanding narrowbody order book and includes a long-term material services agreement. According to a press release issued by GE Aerospace, the deal also provides support for establishing a new engine maintenance, repair, and overhaul (MRO) facility for the airline. CFM International operates as a 50/50 joint venture between GE Aerospace and Safran Aircraft Engines.
Record-setting engine procurement
The MoU covers the power requirements for a specific segment of IndiGo’s future fleet. Reporting by Aviation Week indicates the order breaks down to engines for 135 undecided Airbus A320neos and 375 undecided Airbus A321neos. The airline currently operates more than 430 aircraft, with over 375 A320 and A321 Family jets already supported by CFM.
Incoming IndiGo Chief Executive Officer Willie Walsh, who officially assumes the role by August 2026, stated the LEAP engine’s reliability makes it the ideal choice to support the carrier’s scale and operational resilience.
“As IndiGo embarks on its next phase of growth towards becoming a truly global airline, we are delighted to extend our long-standing partnership with CFM International for the engines powering future deliveries of our Airbus A320/321neo Family aircraft fleet,” Walsh said in the company statement.
GE Aerospace Chairman and Chief Executive Officer H. Lawrence Culp, Jr. noted the engines are delivering up to twice the time on wing in hot and harsh operating environments compared to their initial entry into service.
Transitioning the narrowbody fleet
The massive LEAP-1A commitment finalizes IndiGo’s pivot away from the Pratt & Whitney PW1100G geared turbofan (GTF) engine. Aviation Week reported the airline previously faced the grounding of up to 75 aircraft due to GTF durability problems and powder metal defect issues.
IndiGo began its relationship with CFM in 2016 with a sub-fleet of Airbus A320ceo Family aircraft powered by CFM56-5B engines. The carrier deepened that partnership in 2019 by selecting the LEAP-1A for its initial batch of Airbus A320neo and A321neo aircraft. The July 20 agreement ensures the remainder of the airline’s narrowbody deliveries will utilize CFM propulsion.
AirPro News analysis
We view this 1,000-engine MoU as a definitive operational reset for IndiGo as it prepares for leadership under Willie Walsh. The carrier’s previous exposure to Pratt & Whitney GTF supply chain and durability constraints severely impacted capacity. By standardizing the remaining 510 A320neo Family deliveries on the LEAP-1A, IndiGo is prioritizing fleet availability and predictable maintenance intervals over a split-engine strategy. The inclusion of localized MRO support in the agreement also signals a maturation of India’s domestic aviation infrastructure, reducing the airline’s reliance on constrained global overhaul facilities.
Sources: GE Aerospace
Photo Credit: GE Aerospace
Aircraft Orders & Deliveries
SMBC Aviation Capital Orders 200 Aircraft at Farnborough 2026
SMBC Aviation Capital placed firm orders for 100 A320neo family and 100 Boeing 737 MAX jets at Farnborough Airshow 2026.
Aircraft lessor SMBC Aviation Capital secured a massive dual-manufacturer commitment at the Farnborough International Airshow on July 20, 2026, placing firm orders for 100 Airbus A320neo family aircraft and 100 Boeing 737 MAX jets.
The 200-aircraft acquisition guarantees the lessor a steady stream of narrowbody deliveries into the mid-2030s. This strategic move comes as the broader aviation industry continues to grapple with persistent supply-chain bottlenecks that have constrained production rates at both major airframers.
Airbus narrowbody commitments
In a press release issued during the airshow, Airbus confirmed the firm order consists of 65 Airbus A321neo and 35 Airbus A320neo aircraft. The agreement pushes the total number of direct Airbus commitments from SMBC Aviation Capital and its parent company, Sumitomo Corporation, past 900 aircraft.
Airbus Executive Vice President of Sales for Commercial Aircraft Benoît de Saint-Exupéry highlighted the long-standing relationship between the manufacturer and the lessor.
“We are honoured to stand with SMBC Aviation Capital as they place this order for additional A320neo family aircraft, the world’s most leased and most traded aircraft making it the benchmark for airlines, lessors and investors alike,” de Saint-Exupéry stated.
Boeing 737 MAX and CFM engine agreements
Concurrently, SMBC Aviation Capital announced a matching commitment with Boeing for 100 narrowbody aircraft. The lessor’s official statement detailed a split of 60 Boeing 737 MAX 10 and 40 Boeing 737 MAX 8 jets.
To power the newly ordered Airbus fleet, SMBC Aviation Capital also secured an agreement for up to 90 CFM International LEAP-1A engines.
SMBC Aviation Capital Chief Executive Officer Peter Barrett emphasized the necessity of securing long-term availability for the company’s airline clients.
“This significant new order will give our airline customers access to a continuous delivery pipeline of the latest technology A320neo family aircraft into the mid-2030s,” Barrett said.
He added that the order reflects the lessor’s confidence in the sustained demand for the A320neo family. Deliveries for the newly ordered Airbus aircraft are expected to commence in the first half of the 2030s.
AirPro News analysis
We view SMBC Aviation Capital’s balanced 200-aircraft acquisition as a direct response to the current manufacturing environment. By splitting the order evenly between the Airbus A320neo family and the Boeing 737 MAX, the lessor is effectively hedging its delivery risks. Industry reporting from the 2026 Farnborough International Airshow indicates that total dealmaking may fall short of the ambitious 800-aircraft expectations held by some analysts, largely due to ongoing production bottlenecks at both Airbus and Boeing.
In an environment where near-term delivery slots are virtually nonexistent, securing a pipeline that stretches into the mid-2030s is critical for major lessors. Airline customers are increasingly reliant on lessors to provide capacity growth and fleet renewal options when direct manufacturer orders face multi-year backlogs. The inclusion of 60 Boeing 737 MAX 10s and 65 Airbus A321neos also underscores a continued market shift toward the largest variants of both narrowbody families, maximizing seat capacity in slot-constrained airports.
Sources: Airbus
Photo Credit: Airbus
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