In the latest tumultuous twist for the Recording Academy, the embattled organization behind the Grammy Awards, the institution’s brand-new chief executive, Deborah Dugan, was removed from her position on Thursday, just 10 days before this year’s ceremony.

In a statement late Thursday, the academy said that Ms. Dugan, who joined the organization in August, had been placed on administrative leave “in light of concerns raised to the Recording Academy board of trustees, including a formal allegation of misconduct by a senior female member of the Recording Academy team.” The board, it said, had retained two independent investigators to look into the matter.

On Thursday, the academy declined to elaborate on the reasons for Ms. Dugan’s dismissal.

But according to a person with direct knowledge of the events, Ms. Dugan had been removed after a complaint was filed by the assistant to her predecessor, Neil Portnow, who had also worked temporarily for Ms. Dugan. The assistant accused Ms. Dugan of a bullying management style, the person said, which contributed to the assistant taking a leave of absence.

Ms. Dugan’s dismissal also came less than three weeks after she sent a memo to the academy’s head of human resources that detailed her concerns about the governance and practices of the organization, which she said led her to believe that “something was seriously amiss at the Academy.”