Boeing Faces First‑Quarter Delivery Delays on 737 MAX After Wiring Flaw Discovery

BA
March 11, 2026

Boeing announced that scratched wiring was found on a group of 737 MAX aircraft, a defect traced to a machining error that requires rework before the planes can be delivered. The company said the issue will delay first‑quarter deliveries but will not affect its year‑end delivery target of at least 500 aircraft.

The wiring flaw involves small scratches on the wiring harnesses, and Boeing is performing rework on the affected airplanes to meet its quality standards. All in‑service 737 MAX aircraft can continue to operate safely while the rework is completed.

Katie Ringgold, the 737 program vice‑president and general manager, told the International Society of Travel Agents Americas conference that the company has paused ticketing and deliveries as it works through the issue. She added that the disruption will last only a few days, not weeks. Boeing’s statement emphasized that the rework is necessary to ensure the aircraft meet quality standards before delivery.

The delay is a short‑term headwind for first‑quarter results, but Boeing maintains its production rate and full‑year delivery target. The incident adds to the company’s ongoing quality‑control challenges and regulatory scrutiny, and it could complicate Boeing’s planned ramp‑up to 47 aircraft per month later in 2026 and eventually 63 per month. Investors have expressed concern over the recurring quality issues, reflecting the broader impact on Boeing’s reputation and future delivery schedules.

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