March 10, 2026 — Arlington, Va. Boeing announced the discovery of scratched wiring bundles on undelivered Boeing Says Wiring Flaws Will Slow Some 737 MAX Deliverieshttps://www.reuters.com/business/aerospace-defense/boeing-wiring-flaws-delay-some-737-max-deliveries-wsj-reports-2026-03-10 aircraft due to a machining error, requiring rework that Boeing Says Wiring Flaws Will Slow Some 737 MAX Deliveries some first-quarter deliveries.
The issue affects a group of produced but undelivered 737 MAX jets, with no impact on in-service aircraft. Boeing informed the Federal Aviation Administration and customers about the small scratches on wires.
Our 737 program is performing rework on a group of airplanes to fix wires that have small scratches due to a machining error.
Boeing maintains its full-year target of delivering at least 500 737 jets in 2026 despite the Boeing Says Wiring Flaws Will Slow Some 737 MAX Deliveries.
Details of the Issue
Aviation Week reported the wiring problem forces a delivery pause for rework, impacting March and first-half 2026 deliveries. The Wall Street Journal traced it to a production machining error, without specifying the number of affected planes or supplier involvement.
FlightGlobal and Airways Magazine confirmed the need for fixes on undelivered aircraft.
Production and Financial Context
Boeing’s production rate remains at 42 jets per month, with plans to rise to 47 later in 2026 and add a fourth assembly line in Everett, Washington, targeting 63 monthly.
The company delivered 51 planes in February, its highest February total since 2017, per Bloomberg. Boeing shares fell nearly 1% following the Boeing Says Wiring Flaws Will Slow Some 737 MAX Deliveries announcement.
Industry Reaction
Aviation-focused X accounts, including @Avgeek_Jan and @airwaysmagazine, described it as a quality control matter, not safety-critical, with quick fixes expected. @chaviation noted Q1 impacts.
The New York Times and CNBC echoed that Q1 deliveries would be limited but annual goals unchanged. For related coverage, see Aeronautics Online sitemap.
