American Savings Bank showed strong loan growth in the fourth quarter but net income fell 15.2 percent primarily due to lower gains on residential mortgage sales and less fee income the bank collected from debit card transactions.

The state’s third-largest bank said today it had earnings of $12.2 million compared with $14.4 million in the year-earlier quarter.

For the year, American Savings’ net income slipped 1.9 percent to $57.5 million from $58.6 million in 2012.

American Savings, a subsidiary of Hawaiian Electric Industies Inc,  announced its earnings after  the market closed today. HEI will release its full earnings report on Feb. 18.