March 10, 2026 — Renton, Washington — Boeing disclosed small scratches on wiring bundles in some undelivered 737 Max jets caused by a machining error during production, leading to Boeing 737 Max delivery delays due to wiring flaws for certain first-quarter handovers. The company emphasized the issue poses no safety risk to in-service aircraft and can be repaired in days per plane, with the full-year delivery goal of around 500 jets unchanged.
Boeing’s announcement marks Boeing 737 Max delivery delays due to wiring flaws as the latest production challenge, following strong February deliveries. Affected planes, produced but not yet delivered, require rework at the Renton factory.
Issue Details and Rework Process
The scratches stem from a machining error on wiring bundles, prompting a temporary pause in deliveries for inspection and repair. According to coverage, the fix is straightforward and quick, limiting disruptions primarily to March and early second-quarter schedules [2] [3].
FlightGlobal reported a slowdown specifically for undelivered aircraft undergoing wiring rework.
Market and Industry Response
Boeing 737 Max delivery delays due to wiring flaws contributed to a tumble in shares, despite recent highs in jet deliveries [7] [6]. Reuters framed it as another hiccup amid ongoing production efforts [4].
Real-Time Discussions on X
Aviation accounts highlighted Boeing 737 Max delivery delays due to wiring flaws. @AviationWeek noted paused deliveries for wiring assessment. @AirlineGeeks flagged the defect on undelivered jets, while @Aviationa2z shared details including images of the scratched wiring.
CNBC and others positioned this as a setback for Boeing’s narrowbody program [8], with coverage continuing into March 11.
