MEMORANDUM *

1. The district court did not err in granting summary judgment to Lockheed based on the government contractor defense. See Boyle v. United Techs. Corp., 487 U.S. 500, 512, 108 S.Ct. 2510, 101 L.Ed.2d 442 (1988) (design defect claims); Getz v. Boeing Co., 654 F.3d 852, 866 (9th *459 Cir. 2011) (failure-to-warn claims). Lockheed introduced affidavits from Valentino Jimenez and Deborah Parker establishing the elements of this affirmative defense. Sequira offered no competent evidence to rebut it.

The affidavits show that the United States approved “reasonably precise specifications” requiring Lockheed to use asbestos-containing “Government Furnished Equipment” in the F-80 aircraft, including a J-33 engine and its integrated subassem-blies. See Boyle, 487 U.S. at 512, 108 S.Ct. 2510. These subassemblies contained blankets and valves, which Paul Olds claimed released asbestos particles into the air where he worked. Moreover, the equipment conformed to the government’s specifications because Lockheed complied with all its directives for constructing the F-80 aircraft, including the use of specific warnings. See Getz, 654 F.3d at 864, 866. Finally, the United States knew about the hazards of asbestos as early as 1944 — well before Olds allegedly encountered it. Therefore, there were no dangers known to Lockheed but not to the United States. See Boyle, 487 U.S. at 512, 108 S.Ct. 2510.

Sequira attempted to introduce the declaration of Mark Thomson to counter Lockheed’s assertions. But the district court excluded the Thomson declaration for lack of foundation and because Thomson “manufacture^] ... factual disputes.” Sequira does not challenge this ruling on appeal and is thus left without any evidence to contest Lockheed’s affirmative defense. Accordingly, “there is no genuine dispute as to any material fact” and Lockheed “is entitled to judgment as a matter of law.” Fed.R.Civ.P. 56(a).

2. UTC, as successor-in-interest to Pratt & Whitney, is also entitled to summary judgment because Sequira didn’t present a prima facie case of asbestos exposure. Sequira didn’t offer competent expert evidence showing that the asbestos from the Pratt & Whitney engines was a “substantial factor” in causing his meso-thelioma. See Rutherford v. Owens-Illinois, Inc., 16 Cal.4th 953, 67 Cal.Rptr.2d 16, 941 P.2d 1203, 1219 n. 11 (1997) (citing Lineaweaver v. Plant Insulation Co., 31 Cal.App.4th 1409, 37 Cal.Rptr.2d 902, 906 (1995)) (directing mesothelioma and lung cancer plaintiffs to introduce expert testimony to show that exposure was a “substantial factor” in causing their injuries).

Having admitted that Olds failed to present competent evidence or even address the point before the district court, Sequira can’t argue the “substantial factor” issue here. We don’t review issues raised for the first time on appeal, much less factual ones. Pfingston v. Ronan Eng’g Co., 284 F.3d 999, 1004 (9th Cir. 2002).

AFFIRMED.