March 10, 2026 — Renton, Washington Boeing disclosed that a Boeing 737 MAX wiring flaw delays some deliveries after identifying minor scratches on wiring bundles in a group of undelivered 737 MAX aircraft, caused by a machining error during production.
The company stated there are no immediate safety risks to in-service aircraft and plans to complete quick repairs, though the Boeing 737 MAX wiring flaw delays some deliveries in the near term, potentially impacting first-quarter targets. Production will continue at the current rate of 42 jets per month, with full-year goals of about 500 deliveries intact.
Details of the Issue
Boeing’s 737 program is performing rework on the affected undelivered planes to address the small scratches, which occurred within Boeing facilities rather than at suppliers, according to Aviation Week.
Our 737 program is performing rework on a group of airplanes to fix wires that have small scratches due to a machining error.
All in-service 737 MAX airplanes can continue to safely operate.
The number of impacted aircraft remains undisclosed, but repairs are expected to take several days per plane.
Delivery and Production Impact
Boeing has paused ticketing and deliveries temporarily as it resolves the Boeing 737 MAX wiring flaw delays some deliveries, leading to disruptions in March and the first half of 2026. The New York Times reported that February saw 51 deliveries—the best since 2017—before the issue halted momentum.
737 program VP and general manager Katie Ringgold said:
We paused ticketing and deliveries as we work through this issue. There is going to be disruption for the next few days. It will take several days to resolve, not weeks.
Reuters noted Boeing informed the FAA and customers, with shares dipping nearly 1% on the news.
Broader Context
This Boeing 737 MAX wiring flaw delays some deliveries adds to ongoing scrutiny of the program’s production quality, following issues like door plugs and supply chain defects, as covered by Barron’s.
Boeing emphasized the issue does not affect flying aircraft safety and will update via service bulletins if needed. Aviation outlets on X quickly shared updates, including AirlineGeeks linking to their report on the defect.
The Boeing 737 MAX wiring flaw delays some deliveries underscores persistent challenges under new CEO Kelly Ortberg, per CNBC.
