Boeing (BA) supplier Spirit AeroSystems (SPR) is reportedly making some cuts, and its staff will face the brunt of them. The company is laying off roughly 450 of its workers amid Boeing’s struggles with its 737 Max fleet, which has been the source of concern and a series of investigations after a door plug blew off of an Alaska Airlines-operated Boeing 737 Max 9 aircraft mid-flight on Jan. 5.

The incident caused the Federal Aviation Administration to pause the expansion of Boeing’s 737 Max aircraft production as it looked into the company’s safety and quality control practices. Spirit AeroSystems, which supplies vital pieces to Boeing’s planes, has also faced multiple probes into its production practices since the incident in January.

Related: Another Boeing whistleblower dies after raising safety concerns

The probes have caused a slowdown in orders and deliveries of Boeing’s aircrafts, which appear to be the main culprit of Spirit AeroSystems recent layoffs.

“The recent slowdown in the delivery rate on commercial programs compels a reduction to our workforce in Wichita,” said Spirit AeroSystems spokesperson Joe Buccino in a memo announcing the job cuts, which was obtained by KSN. “In the coming weeks, we will inform affected employees. We are committed to implementing this transition in as compassionate a manner as possible.”

In the memo, Buccino also claimed that the company “must slow down” its operations to align its workforce with its customers’ needs.

The move from Spirit AeroSystems comes after it filed a lawsuit on May 1 against Texas Attorney General Ken Paxton for launching an investigation into the company (which has a facility in Texas) over the Alaska Airlines incident. The investigation aims to look into Spirit AeroSystems’ “organization, conduct, and management,” and will require the company to turnover a series of documents that detail manufacturing issues in its products.

Spirit AeroSystems claims in its lawsuit that Paxton’s request to examine documents “violates” its “Fourth and Fourteenth Amendment right to be free from unreasonable searches and seizures.”

Related: Boeing whistleblower says he received ‘physical threats’ over safety concerns

The company also said that its documents contain “significant business interests” as well as “employment and personnel records” that it aims to keep private.

The lawsuit coincidentally was filed on the same day it was revealed that a second Boeing whistleblower, Joshua Dean, died from a severe bacterial infection. Dean was a quality auditor with Spirit AeroSystems and was part of a class-action lawsuit that accused the company of hiding “widespread quality failures” in its aircraft production from its shareholders.

His death came roughly a month after Boeing whistleblower John Barnett was found dead in his car from a “self-inflicted gunshot wound.”

Related: Veteran fund manager picks favorite stocks for 2024