The Rush Is On to Prevent A.I.G. From Failing Too

The American International Group, the insurance company, is planning a major reorganization and a sale of its aircraft leasing business and other units to stabilize its finances, a person briefed on the company’s strategy said on Sunday.

A.I.G. became one of the focuses at an emergency gathering of Wall Street executives over the weekend, and was trying to arrange a capital infusion in the face of possible credit downgrades.

It was unclear whether A.I.G. would succeed in its capital search, but a person briefed on the discussions said it was seeking more than $40 billion even as it tried to sell assets to shore up its financial footing. Among the businesses likely to be sold is A.I.G.’s aircraft leasing business, the International Lease Finance Corporation. Founded in 1973, the business has nearly 1,000 planes in its fleet.

Investors, afraid that A.I.G. would have to absorb further write-downs in its already damaged mortgage securities and collateralized debt obligations, have driven down the company’s shares in recent days. The stock closed Friday at $12.14 a share, a decline of 46 percent for the week.

Several private equity firms were at A.I.G.’s headquarters in downtown Manhattan on Sunday, and may inject billions of dollars in capital into the firm, a person briefed on the matter said.

A.I.G.’s problems are not new. The company lost $13.2 billion in the first six months of 2008, largely owing to declining values in mortgage-related securities held in its investment portfolio and collateralized debt obligations it owns.

But the company’s outlook grew grimmer last week when Standard & Poor’s warned that it was considering downgrading the company’s debt as a result of further write-downs it might have to take.

As the credit storm has raged in recent months, insurance companies like A.I.G. have been better positioned than the nation’s banks and brokerage firms to weather it because accounting rules do not require insurers to mark the investments held in their long-term portfolios to market. Insurance companies like A.I.G. can hold their investments until they mature, riding out the ups and downs in the market for those assets.