NEW YORK (CNN/Money) - American International Group Inc., one of the nation's largest insurers that has been marred by a string of recent legal troubles, is considering moves to fix past accounting problems that could total as much as $3 billion, according to a report Friday.

The problems stem from 30 transactions and could eventually include another 60, the Wall Street Journal reported, citing people familiar with the matter.

The article said the errors, which were made with full knowledge of senior executives, were spread over five years and include such things as booking income earlier than it should have been recorded and transferring liabilities off the company's books, according to the Journal's sources.

But the Journal said it's unlikely even a multi-billion dollar restatement would be crushing to AIG (Research), which posted net income of $11.04 billion last year on revenue of $98.61 billion.

News of a possible restatement is the latest in a series of scandals at AIG -- including a settlement in a case that accused it f helping companies hide losses and former executives pleading guilty to bid rigging -- that led the company's long time CEO Maurice "Hank" Greenberg to step down last week.

Earlier this week, two top executives were fired after they indicated they would take the Fifth Amendment in the investigation, Reuters reported.

For further wrongdoing in corporate culture, click here.