How should we evaluate Mianqian Xiaoxi Episode 982, 'The World’s Best Airport Scared Off Zheng Zhihua'?

Although this incident has long faded from public attention, I still feel compelled to provide an update. An aircraft with a service life of 3.0 years was photographed and saved by someone 2.3 years ago—i.e., eight months ago—and that person had been repeatedly defending Zheng Zhihua in discussions related to him. Coincidentally, this very flight was the one Zheng Zhihua boarded. Is such a scenario overly coincidental? Ma Dugong’s content excels in solid evidence and logically coherent reasoning—qualities well worth learning. However, when it comes to specialized industry knowledge, gaps in publicly available information can easily lead to conclusions skewed by a single critical factual error. The current discussion about the accessibility features aboard the A321 (the aircraft model Zheng Zhihua flew on) is precisely such a case. First, we must acknowledge that most domestic accessibility facilities indeed leave much to be desired. Yet students who have traveled abroad know that, especially in Western countries, even their tactile paving and accessible elevators often fall short of ours. For this reason, we should avoid prematurely generalizing about ‘airport accessibility’ or assuming—without evidence—that ‘the airport must be at fault.’ As an aviation enthusiast, my first instinct was to consult the A321 maintenance manual and relevant industry standards—and there I found a crucial detail previously overlooked: Root Cause: Design Flaw — The forward cabin door of the Airbus A321 (designed in the 1990s), upon opening, exhibits a design-intended and predictable downward movement (varying by supplier, up to 20 cm). This was a deliberate trade-off made due to limitations in door design and materials at the time: opening doors required significantly more effort than closing them, so allowing slight downward movement helped reduce crew workload. Reasons Behind Accessibility Improvements in Newer Models Take the A321neo, introduced roughly two decades later (or nearly three decades if tracing back to the original A320—the A321 being its stretched derivative). The A321neo features upgraded engines, improved aerodynamics, and optional additional fuel tanks—dramatically reducing fuel consumption. As a result, an aircraft originally intended for short- to medium-haul routes now possesses transoceanic range. However, long-haul flights differ fundamentally from short-haul ones: onboard accessible lavatories become essential—and so do onboard wheelchairs (since assisting mobility-impaired passengers to the lavatory during turbulence poses serious safety risks if done manually by cabin crew). With onboard wheelchairs now indispensable, the space constraints of the classic A321—particularly the inability of wheelchairs to navigate tight turns in narrow aisles—were resolved by removing one forward lavatory and relocating the first/business-class galley aft. This freed up sufficient space not only to convert another lavatory into a larger, fully accessible unit and widen the aisle for wheelchair maneuverability, but also to add extra seats. Correspondingly, the full suite of boarding support infrastructure—including appropriately matched boarding transition ramps—has also been upgraded. As for online posts showing images where the cabin floor aligns flush with the boarding platform: This, too, reflects improvements introduced in newer models—because, under the older design, the cabin door naturally lowered slightly upon opening.

What is your view on reports that the Airbus A321neo harbors a dangerous defect—similar to the Boeing 737 MAX issues—as reported by British media?

I attended Airbus’s official briefing meeting and am sharing key points from the official通报: The A321neo issue concerns ELAC software version 102. Airbus itself discovered the flaw while developing version 103 of the Elevator Aileron Computer (ELAC) and promptly notified the European Union Aviation Safety Agency (EASA). To date, no actual operational A321neo aircraft has exhibited this problem. The anomaly occurs only when all four of the following conditions are simultaneously met—under which the probability of excessive aircraft pitch attitude exceeds Airbus’s own design limits: 1. Actual aircraft center of gravity (CG) exceeds 37% MAC; 2. Full landing configuration (flaps/slats fully extended); 3. Radio altitude below 100 feet; 4. Pilot applies and holds back stick input exceeding two-thirds of full travel. Airbus’s current mitigation measures include: — Adjusting the weight-and-balance envelope to ensure CG remains within the 37% limit; — Version 103 of the ELAC software fully resolves the issue. Key concerns raised by airlines include: 1. Enforcing the 37% CG limit may impact payload/revenue optimization; 2. What constitutes ‘excessive pitch attitude’? At 100 feet radio altitude, the pilot workload and risk associated with a 20-degree versus a 40-degree nose-up attitude are vastly different.

Airbus Probes A321neo Flaw as Repair Plan Eases Disruption

Sep 28, 2026

Airbus and Leonardo are investigating a coating defect at supplier TESI affecting 500 A321neo jets, necessitating a shortened two-year repair cycle instead of four, while maintaining safety standards.

reuters

2026-09-28

Airbus Probes A321neo Flaw as Repair Plan Eases Disruption

Airbus Probes A321neo Flaw as Repair Plan Eases Disruption

FAQ