March 12, 2026 — Renton, Washington Boeing has launched a Boeing 737 MAX production rework due to wiring issue, halting deliveries of certain undelivered 737 MAX aircraft after inspections revealed small scratches on wiring bundles from a machining error at its Renton factory.
The issue, disclosed on March 10, affects produced but undelivered jets, with Boeing notifying the FAA and customers. An engineering analysis determined the scratches pose no immediate safety risk, and all in-service 737 MAX planes can operate safely.
Cause of the Boeing 737 MAX Production Rework Due to Wiring Issue
The scratches resulted from a machining error during assembly, not involving suppliers, according to Aviation Week. Boeing’s 737 program vice president Katie Ringgold stated:
“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.”
The Seattle Times confirmed the problem originated at the Renton production site.
Impact on Deliveries and Production
The Boeing 737 MAX production rework due to wiring issue has caused near-term delays, potentially affecting first-quarter 2026 totals. No specific number of affected aircraft was disclosed. Production continues at 42 jets per month, with plans to rise to 47 later this year, per FlightGlobal and Reuters.
Boeing expects no change to its year-end goal of about 500 737 deliveries and reaffirmed 2026 financial guidance, as reported by The New York Times.
“Our 737 programme is performing rework on a group of airplanes to fix wires that have small scratches due to a machining error. This ensures they meet our quality standards before the airplanes are delivered.”
Boeing shares fell nearly 3% following the announcement, according to market reports.
Broader Context
This Boeing 737 MAX production rework due to wiring issue adds to ongoing quality scrutiny, though limited to undelivered jets. If in-service fixes are needed, Boeing will issue service bulletins. For related coverage, see Aeronautics Online sitemap.
