(Reuters) -GE Aerospace CEO Larry Culp has declined Boeing's ( BA ) request to consider taking over as the U.S. planemaker's top boss, the Wall Street Journal reported on Monday.

Boeing ( BA ) and GE Aerospace did not immediately respond to Reuters' requests for comment.

The U.S. planemaker has had to navigate safety concerns after it came under scrutiny following a mid-air cabin panel blowout in an Alaska Airlines-operated MAX 9 jet carrying 171 passengers this year and prior accidents involving the same family of jets.

The U.S. Federal Aviation Administration has barred Boeing ( BA ) from expanding production of its cash-cow 737 MAX family of jets without estimating how long the limitation will last. The restriction followed a series of separate quality issues that pressured deliveries last year.

Boeing ( BA ) is also investigating a new quality problem with its 787 Dreamliner after discovering that hundreds of fasteners have been incorrectly installed on the fuselages of some undelivered jets, Reuters reported last week.

The Arlington, Virginia-based company had said in March Dave Calhoun would step down as CEO by the end of 2024.

Board chair Larry Kellner and Stan Deal, head of the company's commercial planes business, were also set to leave.