The investigation centered on audits conducted for Babcock’s 2019 and 2020 financial reports. According to the FRC, the firm failed to secure adequate evidence or properly challenge management’s accounting decisions regarding cash pooling, aircraft-related costs, and goodwill impairments. These oversights eventually necessitated material restatements in Babcock's 2021 financial results to address the accumulated errors.

Beyond the financial penalty, PwC has committed to a formal review of its internal procedures. The firm must report to the regulator on its protocols for rotating audit partners and its strategy for identifying and mitigating rising audit risks. This sanction adds to a growing list of regulatory actions against the firm, which includes previous fines concerning its work for Wyelands Bank and BT Group’s Italian accounts.