A Boeing 777-9 jetliner plane is pictured on the tarmac during the 2023 Dubai Airshow at Dubai Globe Central – Al-Maktoum Intercontinental Airport in Dubai on Nov. 13, 2023.
Giuseppe Cacace | AFP | Getty Photos
Boeing Co said on Sunday it will have to do extra work on about 50 undelivered 737 Max airplanes, perhaps delaying around-term deliveries, after its supplier Spirit AeroSystems discovered two mis-drilled holes on some fuselages.
Boeing confirmed the findings in reaction to a Reuters query after industry resources claimed a spacing problem had been identified in holes drilled on a window body, but the jetmaker stated safety was unaffected and existing 737s could hold flying.
“This past Thursday, a supplier notified us of a non-conformance in some 737 fuselages. I want to thank an staff at the supplier who flagged to his manager that two holes might not have been drilled precisely to our requirements,” Boeing Commercial Airplanes CEO Stan Deal explained in a letter to team.
“Though this probable situation is not an speedy flight security situation and all 737s can proceed operating safely, we presently think we will have to perform rework on about 50 undelivered airplanes,” Deal said.
The checks aim on probably incorrect positioning of two holes on a window frame assembly supplied by Spirit, a situation recognized as “shorter edge margin,” the sources explained.
As of Friday, the “non-conformance” or quality defect had been uncovered in 22 fuselages – practically half of the 47 inspected up that level in creation techniques distribute between Boeing and Spirit – and might exist in some 737s in company, they added.
The figures Deal supplied to staff members on Sunday advise that the inspections proceeded rapidly and that the trouble influences a minority of the hundreds of fuselages in the pipeline.
“As part of our 360-degree quality management plan, a member of our crew identified an challenge that does not conform to engineering benchmarks,” a Spirit AeroSystems spokesperson mentioned.
The conclusions arrived to gentle in a regimen notification identified as a Observe of Escapement, in which suppliers notify Boeing of any regarded or suspected quality slip, the resources claimed.
Such quality reports are typical in aerospace but the discovery comes as Boeing and its best-selling jet face rigorous scrutiny after the mid-air blowout of a doorway plug on an Alaska Airlines jet on Jan 5.