PKL Services, Inc.*, Poway, Calif., is being awarded a $16,079,221 modification to a previously awarded firm-fixed-price contract (N00421-09-C-0023) to exercise an option for organizational level maintenance on the following Marine Corps aircraft platforms:  AH-1W, UH-1N, CH-53D/E, and CH-46E.  Work will be performed in San Diego, Calif. (48 percent); Jacksonville, Fla. (25 percent); Iraq/Afghanistan (22 percent); and Kanehoe Bay, Hawaii (5 percent).  Work is expected to be completed in February 2013.  Contract funds in the amount of $16,079,221 will expire at the end of the current fiscal year.  The Naval Air Warfare Center Aircraft Division, Patuxent River, Md., is the contracting activity.