## Facts

- Cargo owners, including Swift & Co. Packers, shipped rice from Ecuador to Cuba aboard the M/V Cali, owned and operated by Compania Transmaritima Colombiana, S.A.
- The cargo was allegedly delivered in good order but was not delivered after the vessel sank or partially sank near Grand Cayman; petitioners alleged negligence and breach of the contract of affreightment.
- Petitioners filed an admiralty libel in personam in the Canal Zone against Transmaritima and sought foreign attachment if Transmaritima could not be found, identifying a vessel known as the Alacran (later renamed Caribe).
- The marshal attached the vessel.
- Petitioners amended to add Compania Colombiana del Caribe, S.A., alleging it was formed by Transmaritima insiders and was Transmaritima’s alter ego.
- Petitioners alleged the Alacran was transferred from Transmaritima to Del Caribe without real consideration and in fraud of petitioners’ rights, and sought to treat the vessel as still subject to attachment or to treat Del Caribe as garnishee.

## Issues

1. Whether an order vacating a foreign attachment in an admiralty proceeding is appealable as a “final decision” under 28 U.S.C. § 1291.
2. Whether a federal court sitting in admiralty may adjudicate whether a vessel transfer was fraudulent when that determination is necessary to preserve security for a maritime claim.
3. Whether dissolution of the attachment was warranted at the outset based on petitioners’ asserted failure to establish a prima facie case of fraudulent transfer.
4. Whether forum non conveniens justified vacating the attachment given the foreign parties and foreign locus of the alleged transfer.

## Decision

- The Supreme Court held the order vacating the attachment was immediately appealable under § 1291 as a collateral order.
- The Court held the admiralty court had power, in aid of its maritime jurisdiction, to determine whether the vessel transfer was fraudulent and to proceed accordingly regarding attachment.
- The Court held the attachment should not have been dissolved at that stage for failure to prove fraud; petitioners’ ultimate burden did not require dissolution before a full hearing.
- The Court rejected forum non conveniens as a basis for the vacatur on this record, particularly absent assurances that respondents would appear in the foreign forum and provide security equivalent to the attachment.
- The judgment affirming vacatur was reversed and the case remanded.

## Legal Principles

- An order vacating maritime attachment can qualify as a “final decision” under 28 U.S.C. § 1291 when it conclusively resolves a separable question of security that would be effectively unreviewable after final judgment.
- A court exercising admiralty jurisdiction over a maritime claim may decide ancillary matters, including allegations of fraudulent conveyance of a vessel, when necessary to provide effective relief and preserve security.
- The existence of an ultimate burden to prove fraud does not automatically require dissolution of an attachment at the initial stage; the attachment may remain pending adjudication of the fraud claim.
- Forum non conveniens cannot be used to displace a United States litigant to a foreign forum in a way that strips existing security without adequate assurances of appearance and equivalent substitute security.

## Conclusion

The Court held that dissolution of a foreign attachment in admiralty is immediately appealable and that admiralty courts may adjudicate allegedly fraudulent vessel transfers when needed to secure maritime claims; vacatur based on early evidentiary doubts or forum non conveniens was improper on the record.


Swift & Co. Packers v. Compania Colombiana del Caribe, S.A., 339 U.S. 684 (1950)