Thе question raised in this appeal and cross-appeal is whether the district court had jurisdiction over a dispute centering on payments allegedly owed by Ernest W. Hahn, Inc. (Hаhn) to union trusts as a result of work done by a Hahn employee. Appellant trustees also seek review of the denial by the district court of their motion for summary judgment. We reversе the district court’s conclusion that it lacked jurisdiction and dismiss the appeal from the denial of the motion for summary judgment.
I
Appellants are trustees of various trust creatеd pursuant to a collective bargaining agreement between the International Union of Operating Engineers, Local Union No. 12, and various employer associations in the construction industry in Southern California. Pursuant to the agreement, the trusts were to receive payments according to the number of hours worked by or paid employees covered by the agreement. The trustees alleged that Hahn belonged to one such association during the period involved in this dispute.
Among other things, the trustees sued, pursuant to the operating engineers’ trust agreements, for the sum of $11,740.92 for work done by a Hahn employee, Travers, between November 1, 1971 and February 28, 1975. The trustees based jurisdiction on section 301(a) of the Labor Management Relations Act of 1947, 29 U.S.C. § 185(a) (1976). Hahn raised as an affirmative defense that it had employed Travers as a carpenter during this time and had madе payments to trusts of the United Brotherhood of Carpenters and Joiners of America, established pursuant to agreements between that union and Hahn. Hahn also filed a third-pаrty complaint against the trustees of the carpenters’ trusts, seeking recovery from these trustees should Hahn be held obligated to pay funds to the engineers’ trusts.
The district court dеnied the engineers’ trustees’ motion for summary judgment and dismissed the action in its entirety for lack of subject matter jurisdiction, concluding the action was “nothing more than a jurisdictional lаbor dispute.” The trustees appeal both rulings. Hahn has filed a cross-appeal seeking reversal of the dismissal of its third-party action in the event we uphold jurisdiction ovеr the trustees’ action.
II
Hahn characterizes the dispute in this case as one arguably involving an unfair labor practice under section 8(b)(4)(D) of the National Labor Relations Act, as amended, 29 U.S.C. § 158(b)(4)(D) (1976) (the Act), and on this basis argues that the district court lacked jurisdiction to decide it. Hahn relies upon the principle established by San Diego Bldg. Trades Council v. Garmon,
Hahn fears that if the district court were to award the benefit рayments to one of the trusts in this case, “[t]he other union would then be free to assert its claim over the same work by threatening concerted economic action.” This, Hahn argues, would constitute an unfair labor practice pursuant to section 8(b)(4)(D) of the Act, and Hahn could then file charges with the NLRB pursuant to 29 U.S.C. § 160(k) (1976). That action, Hahn concludes, could result in the award of benefits to the trust funds of both unions were the rival union to succeed before the Board.
[wjhile § 8(b)(4)(D) makes it an unfair labor practice for a union to strike to get an employer to assign work to a particular group of employees rather thаn to another, the Act does not deal with the controversy anterior to a strike nor provide any machinery for resolving such a dispute absent a strike. The Act and its remedies for “jurisdictional” controversies of that nature come into play only by a strike or a threat of a strike.
Carey v. Westinghouse Elec. Corp.,
Hahn relies on Buckley v. American Fed’n of Television & Radio Artists,
Ill
We next turn to Hahn’s cross-appeal from the dismissal of its third-party action against the carpenters’ trustees. Hahn has provided us with no argument on the merits of its cross-appeal. Nonetheless, we believe the district court had jurisdiction over the third-party claim as well.
We have stated that where, as here, jurisdiction over a third-party claim is in question, the proper inquiry is whether ancillary jurisdiction exists, that is, whether “the claims arise out of the subject matter of the original action and involve the same persons and issues . . . or if they [arise] out of the same ‘transaction or occurrence.’ ” United States ex rel. Payne v. United Pac. Ins. Co.,
Therefore, the district court should not only entertain the operating engineers’ trustees’ claim but should also consider Hahn’s claim against the carpenters’ trustees.
IV
In his opinion dismissing this action for lack of jurisdiction, the district judge alsо denied the trustees’ motion for summary judgment. The trustees ask us to reverse this judgment and grant the motion.
The denial of a motion for summary judgment is not an appealable order, Oppenheimer v. Los Angeles County Flood Control Dist.,
REVERSED AND REMANDED; APPEAL FROM DENIAL OF SUMMARY JUDGMENT DISMISSED.
Notes
. Moreover, the Second Circuit has since cast some doubt upon whether the NLRB’s jurisdiction in Buckley was even based upon the incipient acts referred to in the text of that opinion. See Bernstein v. Universal Pictures, Inc.,
. We thus do not decide whether the third-party complaint, standing alone, would properly be within the district court’s jurisdiction.
. We disagree with the theory set forth in Morgan Guar. Trust Co. v. Martin,
