Raytheon and Nammo, a Norwegian ammunitions firm, are qualifying a second motor for use on the Advanced-Range Medium-Air-to-Air Missile (Amraam) after an accident at the primary source, Alliant Techsystems (ATK), hampered its ability to deliver on time.

ATK is currently more than 100 deliveries behind, Harry Schulte, director of air warfare systems for Raytheon’s missile business, tells Aviation Week during a June 20 interview at the Paris air show.

The second-source motor qualification is being paid for by Raytheon at $5 million, the U.S. government at $5 million, Nammo at roughly $5 million and slightly more by the Norwegian government.

Early testing of the second-source motor, done this year, is producing good results, Schulte says. Qualification should be complete by next spring, he adds.

Depending upon ATK’s ability to absorb orders, Schulte says the buy of Amraam motors could be split roughly evenly next year. The goal is to get ATK back up and running fully by year’s end, he adds.

The introduction of a second source will not affect the unit cost of the Amraam, also called the AIM-120 series.

Meanwhile, Raytheon is reeling from a proposal by House appropriators to zero funding for Amraam production in fiscal 2012. This would have a 12-18 month impact on production at Raytheon’s Tucson, Ariz., facility, according to an industry source. Senate budget marks have not yet been made, and it is possible some funding could be restored.

Meanwhile, Raytheon is continuing work on the AIM-120D program, which features an advanced seeker and datalink for U.S. customers. One more shot remains in the combined developmental test/operational test phase; a total of three took place in this period. The plan was to conduct the shot late next week, though the test is on hold pending availability of a drone target.

Operational testing, slated to take 12-14 months, would follow in advance of an in-service date in late 2012 or early 2013.