OPINION OF THE COURT
This appeal presents the tridimensional conflict created when a longshoreman seeks redress from the shipowner for injuries sustained in the course of his employment, and the shipowner, in turn, looks to the stevedore for indemnification. We must examine the scope of a stevedore’s duty to defend and indemnify the shipowner, and determine whether a refusal to accept a tender of defense collaterally estops the stevedore from litigating those facts resolved in the longshoreman's action.
Under contract to load stores aboard appellee’s vessel, appellant sent four men, including a foreman, aboard the SS ESSO LIMA on September 25, 1964. Among the cargo to be stowed were several machinery crates, some weighing approximately 350 pounds. The foreman requested and was denied use of the ship’s boom to assist in the stowage. He directed his men to proceed loading the crates by hand. In order to load the crates through the pipe rail, an opening in the deck railing, the men removed the lower of two protective chains. The upper chain was rusted and frozen and could not be disconnected. One crate lodged against that chain. While attempting to free the crate and slide it up through the passage, Marion Domer-acki, one of the longshoremen, permanently injured his back. He brought suit against the shipowner on April 12, 1965, for his damages.
1
On March 3, 1966, the shipowner instituted this action in admiralty, seeking indemnification for the damages awarded in the
Domeracki
action. The district court,
The grant of summary judgment was predicated on determinations that the seven special interrogatories posed to the jury in
Domeracki
2
resolved all genuine issues of material fact, and that the conclusion was ineluctable as a matter of law that any unseaworthiness or negligence attributed by that jury to the shipowner “were conditions created or
*730
brought into play by Stevedore’s breach of [implied] warranty.” The district court found that “[o]n these facts Stevedore must indemnify Shipowner. Italia Societa per Azioni di Navagazione v. Oregon Stevedoring Co., [
Though a shipowner’s liability to a longshoreman injured on his vessel is virtually absolute,
3
the liability of the stevedore for indemnification is not coextensively comprehensive. Indeed, prior to 1956 a careless stevedore who may have “created” a condition of unseaworthiness, but who was not by express terms contractually bound to indemnify, was not required to make a contribution to judgments paid by a shipowner to an injured longshoreman. Halcyon Lines v. Haenn Ship Ceiling & Refitting Corp.,
A new course was charted in Ryan Stevedoring v. Pan-Atlantic S.S. Corp.,
Competency and safety of stowage are inescapable elements of the service undertaken. This obligation is not a quasi-contractual obligation implied in law or arising out of a noncontractual relationship. It is of the essence of petitioner’s stevedoring contract. It is petitioner’s warranty of workmanlike service that is comparable to a manufacturer’s warranty of the soundness of its manufactured product. The shipowner’s action is not changed from one for a breach of contract to one for a tort simply because recovery may turn upon the standard of the performance of petitioner’s stevedoring service. Id. at 133-134,76 S.Ct. at 237 . 4
*731
In Weyerhaeuser S.S. Co. v. Nacirema Operating Co.,
In Italia Societa per Azioni di Navi-gazione v. Oregon Stevedoring,
In short, indemnification may be required under a breach of warranty theory even when the stevedore is not negligent, Italia; supra, or when the shipowner’s own negligence is the primary cause of the longshoreman’s injury, Gilchrist v. Mitsui Sempaku K.K. supra. It appears from the cases that any unreasonable action by a stevedore which activates or exacerbates a latent or manifest condition of unseaworthiness will establish the shipowner’s right to indemnification. Crumady v. J. H. Fisser, supra; Williams v. Ocean Transport Lines, Inc., supra.
The inapplicability of negligence principles, however, is a two-edged sword. A specific finding of negligence does not necessarily establish a breach of warranty, and indemnity may be refused. Hagans v. Farell Lines, Inc.,
*732 From these eases emerges an admittedly abstruse test for indemnity which is perhaps better articulated in terms of shifting burdens than in precise standards of conduct: once a condition of unseaworthiness is established in a direct action against the shipowner, the burden falls on the owner to demonstrate (a) that the condition of unseaworthiness was caused or activated by the stevedore, and (b) that such action by the stevedore constituted a breach of his implied warranty of workmanlike service. 8 The burden then shifts to the stevedore to demonstrate that some action or inaction by the shipowner calls the Weyerhaeuser corollary into play, thus precluding any Ryan right of indemnity.
The extent to which the Weyerhaeuser corollary limits the Ryan doctrine is a matter on which courts differ. 9 This court has recently reaffirmed its substantial emphasis on the Ryan rule:
The right of indemnification is not defeated by the shipowner’s own negligence. Weyerhaeuser S.S. Co. v. Na-cirema Operating Co., supra, and it does not depend upon any privity of contract between the shipowner and the warrantor of workmanlike service. * * * In short, the vessel is entitled to indemnity from whatever third party causes the condition of unseaworthiness producing the injury.
Williams v. Ocean Transport Lines, Inc.,
supra,
There was no dispute that use of the Port Commission’s defective crane was relied upon as creating the condition of unseaworthiness. The Port Commission, therefore, owed Ocean Transport a clear duty to indemnify against Williams’ unseaworthiness claim. It acknowledged that duty in writing and undertook the defense of the action on Ocean Transport's behalf.
Absent such express acknowledgment, the applicability of the Weyerhaeuser corollary is in each case manifestly a jury question.
The reasonableness of the stevedore’s actions must not be evaluated in isolation. Whether the shipowner has created conditions which so impede the stevedore’s performance that his breach may be excused is a weighing process, Waterman Steamship Corp. v. David,
supra,
peculiarly within the province of the factfinder. Atlantic & Gulf Stevedores, Inc. v. Ellerman Lines, 369
*733
U.S. 355,
The answers of the
Domeraeki
jury to the special interrogatories admit of several interpretations. We must reject any interpretation which renders the answers inconsistent. Gallick v. Baltimore & Ohio R. Co.,
Even if we were to accept these findings as conclusive, however, the critical question would still be whether the shipowner’s breach of his absolute duty to furnish a safe and seaworthy vessel so prevented or hindered the stevedore from completing its performance that the subsequent breach of warranty by the stevedore may be deemed excused. This question, appellant urges, the jury did not answer. We agree. Indeed, the question was not, and could not have been, submitted to that jury. The stevedore was not a party to the Domeraeki action and the jury was cautioned that only the shipowner’s liability was before them. 10 As the Second Circuit has noted:
[U]nless the jury knew that it was imposing financial liability upon [stevedore] or relieving it of such liability, or was holding [shipowner] solely liable for plaintiff’s injuries, its answers to the active-passive questions were without legal significance.
McNamara v. Weichsel Dampschiffahrts AG Kiel,
But the question whether the
Domer-acki
findings are binding upon the parties is not rendered academic. If bound by the jury’s answers, the stevedore’s burden is manifestly more difficult. If stowage is indeed “the clearest example of a detail within the special competence and peculiar responsibility of the master stevedore contractor,” Reed v. Bank Lines,
II.
The parties approached the defense of the Domeraeki action in a fashion reminiscent of Alphonse and Gaston. The shipowner, once named as defendant, formally tendered the defense to the stevedore. The stevedore, acknowledging the notice and tender, declined the offer. The stevedore urges that the *734 shipowner should have impleaded the stevedore. The shipowner responds that the stevedore could have moved for consolidation after the commencement of this action. 11 The existence vel non of a duty to defend is, of course, critical:
If the indemnitor was not the party to the original action against the in-demnitee, and where he was under no duty to participate in the defense of the original action, * * * neither the indemnitor nor the indemnitee is bound in subsequent litigation between them by findings made in the action. Where, on the other hand, * * * the indemnitor, with notice of the action and of the indemnitee’s request that he defend it, does not participate in the defense but leaves it to the reasonable efforts of the indem-nitee, then in subsequent litigation between them both indemnitor and in-demnitee are bound by the findings necessary to the judgment in the action. Crawford v. Pope & Talbot, Inc.,206 F.2d 784 , 795 (3 Cir. 1953).
As in Crawford, the parties here had no contractual agreement regarding defense of possible suits by injured longshoremen. The district court found that the duty to defend nonetheless arose because
it was, or should have been, readily apparent to Stevedore that the claims of unseaworthiness and negligence against Shipowner were actually founded upon the manner in which the loading operation was conducted and the equipment used to perform it, matters which were Stevedore’s responsibility. Humble Oil v. Philadelphia, supra,312 F.Supp. at 384 .
If the facts actually or constructively known to the indemnitor at the time defense of the action is profferred to it, demonstrate that liability will eventually fall on indemnitor, the indemnitor is under a duty to defend. Siebrand v. Eyerly Aircraft Co.,196 F.Supp. 936 (D.Or.1961); Nordeutscher Lloyd, Brennan v. Brady-Hamilton Stevedore Co., supra [195 F.Supp. 680 (D.Or.1961)]. Id. at 383.
We do not quarrel so much with the rule enunciated in the cases relied upon by the district court so much as we perceive extreme difficulty in its practical application. The rule calls for an exquisite ability to predict, at a pretrial stage, the eventual outcome of the indemnity action. For the rule to apply, the prospective indemnitor must be in actual or constructive possession of facts which unerringly point to liability. If nothing else, even a cursory perusal of the cases discussed herein will indicate that the duty to indemnify is an evanescent and often desultory doctrine which has divided courts hearing these actions at every level of the federal bench. 12 Without reaching the question of the propriety of this rule, 13 we conclude that at the time tender was made to the stevedore the facts were not as one-sided as they were in Williams, supra, where the sole cause of the unseaworthiness condition was conceded to be the Port Commission’s crane. Several possible exculpatory causes of the unseaworthy condition may have seemed plausible at the pre-trial stages of Domeracki: the denial of use of the ship’s boom; the rusted, frozen chain; an oil slick on the deck. Negative answers to interrogatories 1(c) and 2(c), supra, note 2 were also possible. Under such circumstances, even the Oregon rule recognizes that a *735 stevedore ought not be bound to such an election:
[I] f the primary claim against the in-demnitee is premised on a charge on which the indemnitor would be liable, and also on a separate charge on which the indemnitee was liable, the judgment based on both claims would not, as a matter of law, be conclusive against the indemnitor. Nordeutscher Lloyd, Brennan v. Brady-Hamilton, supra,195 F.Supp. at 684 .
Accordingly, even assuming the vitality of the Oregon rule, we are not persuaded that at the time of the tender of defense the facts demonstrated “that liability [would] eventually fall upon the indemnitor,” thereby placing him under a duty to defend.
Furthermore, we entertain serious reservations concerning the applicability of the “vouching-in” process in this case.
14
The warranty impliedly granted by the stevedore to the shipowner has been likened to a manufacturer’s warranty of fitness.
Ryan, supra,
These general principles [vouching-in] are not really at issue in the present appeal. What is at issue is thé application * * * of another rule, subordinate but nevertheless valid and established, namely, that the liability of the alleged indemnitor — except in those instances where the successive warranties or other bases for responsibility are identical — remains to be proved in the indemnity action and is not necessarily concluded by the result of the injured person’s suit against the one claiming to be an indemnitee.
Similarly it is precisely because the stevedore, who is not an insurer against the shipowner’s loss, warrants something less than does the shipowner vis á vis the longshoreman, that
Domeracki
cannot estop the stevedore from re-litigating the findings therein. The shipowner may still impose liability on the stevedore, of course, “[b]ut its attempt to do so in the [indemnity] suit must go beyond mere proof of the [.Domeracki] results.”
Barber-Greene, supra,
It is no answer, in support of imposing this duty on the stevedore, to stress the judicial economy of the “vouching-in” process. If this be our concern, the most expeditious procedure would be im-pleader, since both actions would then be simultaneously heard. See 3 Moore’s Federal Practice, § 14.02[1], at 432. 15
Moreover, this court’s decision in Crawford, supra, mandates no different result. 16 The Crawford opinion deals at *736 great length with the interrelationship of indemnity and collateral estoppel:
The* general rule is clear. A person not a party to a case is not bound by the findings of that case in subsequent litigation involving the same fact situation. Where the subsequent litigation involves one of the same parties to the original case, even that party is not bound since his adversary, the new party, is not. 17206 F.2d at 794 .
After carving out the aforementioned exception in the case of an indemnitor, Judge Biggs rejected the notion that the potential indemnitor, a shipcleaning firm, could be bound by the prior findings adverse to the shipowner. As here, there was no question of notice. Im-pleader was attempted by the shipowner and rejected by the district court. The shipcleaner took the position that it could not be held to a claim for indemnity. The court agreed:
Although this view was mistaken as to the indemnity claim, the court below sustained it and prior to the trial dismissed the petition to implead National. National, therefore, as far as it could know, was under no duty to participate in the defense of the actions against Pope and Talbot. We conclude that National cannot be bound by any of the findings made in the [prior] litigation between [longshoremen] and [shipowner]. Id., at 796.
Similarly, the stevedore here had nothing but the shipowner's tender on which to conclude that it was duty-bound to assume the defense. Indeed, the shipowner’s failure to implead the stevedore after it refused to defend the original action could only serve to obfuscate any obligation owed by the stevedore. 18
We hold, therefore, that the findings in Domeracki cannot be binding upon the stevedore. The shipowner must affirmatively demonstrate that the stevedore breached its warranty of workmanlike performance, and that the breach occasioned Domeracki’s injuries. Only then will indemnity be sanctioned, “absent conduct on [the shipowner’s] part sufficient to preclude recovery,” Weyer-haeuser, supra.
*737 The judgment will be reversed and the cause remanded for proceedings consistent with this opinion. Costs to abide the event. 19
Notes
. The jury returned damages, based on findings of unseaworthiness and negligence, of $270,982. We affirmed the judgment entered on the verdict. Domeracki v. Humble Oil & Refining Co.,
. 1. Did defendant shipowner breach the absolute duty to furnish a safe and seaworthy vessel
(a) by furnishing defective equipment?
Yes JC_ No_
(b) by failing to furnish adequate equipment?
Yes _X_ No_
(c) by permitting an improper method of operation in the loading of stores ?
Yes X No
2. If you have answered “Yes” to any of the parts of Interrogatory No. 1, was plaintiff’s injury proximately caused by defendant’s breach of duty set forth in
1(a) ? Yes X No
1(b) ? Yes X No
1(c) ? Yes X No_
3. Was defendant shipowner negligent in failing to provide a reasonably safe place for plaintiff to work?
Yes _X_ No_
4. If your answer to Interrogatory No. 3 is “Yes,” was plaintiff’s injury proximately caused by that negligence?
Yes _X_ No_
5. In what amount do you assess plaintiff’s damages?
$270,982.00
6. Was plaintiff guilty of contributory negligence?
Yes No jX_
7. If your answer to Interrogatory No. 6 is “Yes,” to what extent (stated in percentage) did plaintiff’s negligence contribute to his injury?
—%
. In Seas Shipping Co. v. Sieracki,
.
Ryan,
in which the negligence was almost exclusively attributed to the stevedore, was initially affirmed by an equally divided court. After reargument, it was again affirmed, 5-4. Mr. Justice Black dissented, arguing that “the employer is actually mulcted in damages because its employee successfully, prosecuted a third party action.”
And while this will be accomplished under the name of “contract,” it will really be achieved because the Court has announced as an absolute principle of law that without regard to whether a steve-doring company intends to agree to indemnify, it has so agreed if it agrees to do a job. Thus by indirection rights of *731 longshoremen and their employers recognized by this Court in Sieracki, Halcyon, and Pope & Talbot are taken away. In effect the Sieracki case is rejected. Id.350 U.S. at 147 ,76 S.Ct. at 244 . See dissent of Judge Friendly in Reid v. Quebec Paper Sales,340 F.2d 34 , 39 (2 Cir. 1965).
. Though the right to indemnity is thus dearly contractual, the stevedore’s warranty need not emanate from a direct agreement with the shipowner. In Crum-ady v. The Joachim Hendrik Fisser,
. Critical to the Court’s decision was the finding that the stevedore was “the party best situated to adopt preventive measures [inspections, tests, and retirement schedules for its equipment] and thereby to reduce the likelihood of injury.”
. An attempt to codify the obligations owed by the shipowner appears in Comment, “The Ryan Doctrine: Present Stature and Future Development,” 37 Tul.L.Rev. 786 (1963), an excerpt from which is foot
*732
noted by tlie Court in Waterman Steamship Corp. v. David,
Though the Supreme Court has not further defined the standard of conduct which will invoke the
Weyerhaeuser
corollary, it has added a new dimension to the liability issue. In Federal Marine Terminals, Inc. v. Burnside Shipping Co.,
. It is vital to recognize that the stevedore’s breach must be independently demonstrated. As noted most recently by the Fifth Circuit, a stevedore,
through his
employee, may in fact activate the unsea-worthy condition, but nonetheless still not violate his warranty of workmanlike performance. In Delaneuville v. Simonsen,
.
Compare, e. g.,
Waterman Steamship Corp. v. David,
supra,
with Guidry v. Texaco,
. The court instructed the jury:
You are here to try the case of Marion Domeraeki against the Humble Oil and Refining Company. That is the only case you are here to try. Whatever reference may have been made to other litigation, just disregard it. This is the case you are here to try, you are sworn to try and this is the only one I want you to consider.
Later the court added:
Members of the jury, you are trying one law suit. You are not here to determine whether the ship has any rights against anybody else.
. As tlie district court acknowledged, this procedure has received the imprimatur of this court. See Blake v. Farrell Lines,
. See supra note 4; see also Baer, supra, § 8-1, et seq.
. We need not discuss appellant’s contention that these Oregon cases, relied upon by the court below, in fact support the positions advanced on this appeal. In the view we take of this case, analysis of these two cases is unnecessary.
. “Vouching-in” is a common-law device by which a defendant notifies another:
(a) of the pendency of the suit against him; (b) that if liability is found, the defendant will look to the vouchee for indemnity; (c) that the notice constitutes a formal tender of the right to defend the action; and (d) that if the vouchee refuses to defend, it will be bound in any subsequent litigation between them to the factual determinations necessary to the original judgment. Though largely supplanted by modern third-party practice, vouching-in remains marginally viable under the federal rules. Not proscribed by the unified admiralty and civil rules, the practice has been upheld in a few federal cases. Hessler v. Hillwood Mfg. Co.,302 F.2d 61 (6 Cir. 1962); The West Indian Co. v. SS Empress of Canada,277 F.Supp. 1 (S.D.N.Y.1967); Frank R. Jelleff, Inc. v. Pollack Bros.,171 F.Supp. 467 (N.D.Ind.1957).
. Professor Moore would restrict the use of the vouching-in process to those cases in which process on the indemnitor cannot be obtained. Id. at 432, note 5. This procedure has been, upheld in Hessler v. Hillwood, supra.
. U. S. Lines v. Maritime Shipcleaning,
It is clear that [stevedore] had [no] contractual duty to defend the [long *736 shoreman’s] suit against [shipowner] under any written contract of insurance or indemnification. There being no duty to defend the original action, the rule of Crawford v. Pope & Talbot, supra, dearly holds that none of the parties to this subsequent suit are bound by the findings of fact in the [longshoreman’s] suit. Thus it is incumbent upon the [shipowner] plaintiff in this suit to prove its actual liability to [longshoreman] and the [stevedore’s] responsibility for the [longshoreman’s] injuries.
. We need not here be concerned with questions of mutuality of estoppel, resolved in Bruszewski v. United States,
It was our view in Bruszewski * * * that except for considerations of unfairness shown in a particular case, a party who as plaintiff had asserted a claim and liad lost should not be heard again on the merits of that claim even in a second suit which he thereafter has instituted against a stranger to the original claim.
. Though the longshoreman’s complaint did not specifically invoke the admiralty jurisdiction of the court, the allegation of negligence was predicated on the unseaworthiness of the vessel. Whether this sufficiently conformed to the dictates of Rule 9(h), F.R.O.P., thus permitting im-pleader under Rule 14(c), impleader would in any event have been proper under Rule 14(a). Since the stevedore would have then had full opportunity to litigate those facts critical to its own liability, it would have been bound by the factual findings in Domeracki. See 3 Moore’s Federal Practice § 14.13, note 4.
. Appellant has argued that, irrespective of our disposition of this appeal, appellee is not entitled to the costs of defending the original action. On this point the law in our circuit is clear: Gilchrist v. Mit-sui,
supra,
If conduct of [the stevedoring company] in violation of its warranty to [the shipowner] was the sole responsible cause of [the longshoreman’s] injury, as the libel alleges, the expense to which [the shipowner] is subjected in defending [the longshoreman’s] suit against it to recover for that injury is an element of damage caused by the [stevedore company’s] breach of warranty, even if [the shipowner] succeeds in defeating [the longshoreman’s] claim. (Citations omitted and emphasis added.) (Emphasis and brackets by the court.) Accord: Stracban Shipping Co. v. Koninklyke Nedr. S. M.,324 F.2d 746 (5 Cir. 1963); see Baer, Op. Cit. § 8-4, at 216-17.
The parties here agree that this case is controlling, but interpret differently the import of the Domeraclci findings. Since they are not binding on this action, costs will be borne by the appellee unless the court below determines, on remand, that appellant was solely responsible for Dom-eracki’s injuries.
