The facts giving rise to this action, as admitted by demurrer, may be briefly summarized. The defendant Eaton Manufacturing Company sold an exhaust valve to the defendant Avco Corporation. Avco incorporated this exhaust valve into a motor which it manufactured and sold to the defendant Piper Aircraft Corporation. Piper incorporated this motor into an airplane which it manufactured and sold to the defendant the Danbury School of Aeronautics, Inc. Danbury School sold the airplane to a customer, who, after using the airplane, resold it to Danbury School, which subsequently sold it to the plaintiff in May, 1963. In August, 1963, the airplane was damaged in a crash landing due to *552 engine failure, which, in turn, was “due to a cracked or defective exhaust valve in Number 3 cylinder probably caused by excessive valve guide wear.” At the time of the accident, the engine had been operated for 687 hours. Normal overhaul time for such an engine is 800 to 1200 hours.
The plaintiff in a four-count complaint has sued all of the above-mentioned parties except the first purchaser from the Banbury School. The school answered on the merits and is not involved in this appeal. The remaining defendants, Piper, Avco and Eaton, were each the object of an individual count. As to each of these three defendants, there was set up in a single count three causes of action sounding in (1) warranty, express “and/or” implied, (2) negligence and (3) “tortious conduct ... in manufacturing and selling a product containing a defect, or likely to develop a defect, which made or would make such product unreasonably dangerous for those purposes for which it would reasonably be used.” This manner of pleading is a permitted practice;
Veits
v.
Hartford,
From this point on, the case developed into a gordian knot of procedural difficulties owing to a failure of the parties to observe elemental rules of pleading and practice. It is a knot which we can neither entirely untie nor cut without prejudice to one or the other of the parties.
Piper, Eaton and Avco each filed demurrers which were sustained. Piper’s amended demurrer was addressed to the entire second count directed against it. As we have noted, the count purported to set out three causes of action, one of which
*553
sounded in negligence. The demurrer did not reach the negligence aspects of the count, and accordingly, even if the demurrer was good as to the other allegations, since it was addressed to the entire count, it should not have been sustained. Practice Book § 106;
McNish
v.
American Brass Co.,
The joint demurrer of Eaton and Avco to the respective counts directed against them was limited to the purported causes of action other than that sounding in negligence. The sustaining of this demurrer would, therefore, under normal circumstances, present on appeal only the specific question as to whether the counts stated causes of action for express “and/or” implied warranty and for manufacturing and selling a defective and dangerous product.
The judgment as printed in the record and a reference in the plaintiff’s briéf, however, have prompted us to examine the file in this case. It discloses that the court’s memorandum of decision sustaining the demurrers was filed on June 16, 1965. On July 28, 1965, the plaintiff filed a motion for permission to amend his complaint, and this motion was granted on September 10, 1965, the amendment being docketed as filed on that day. This pleading amended each of the counts as to which, in whole or in part, a demurrer had been sustained by removing the cause of action based on negligence
*554
and, as to each defendant, made that cause of action a separate additional count of the complaint. “When a demurrer to the whole or a portion of a pleading which purports to state an entire cause of action is sustained, the sustaining of the demurrer removes from the case the cause of action demurred to. Practice Book [1951] § 98 [now Practice Book, 1963, § 112]. ‘Whenever, after a demurrer sustained, the complaint or pleading demurred to is amended or a substitute filed, that demurrer and the pleading to which it relates are taken out of the case. The filing of the amendment or substitution, as the case may be, is a withdrawal of the first.’
Eames
v.
Mayo,
On September 20, 1965, ten days after amending his complaint, the plaintiff, presumably acting pursuant to the authority of such cases as
Vincent
v.
McNamara,
It is from this judgment, based on the sustaining of the demurrers to the unamended complaint, that the plaintiff has appealed, claiming that the court erred in sustaining the demurrers to the second, third and fourth counts. Since counsel did *556 not act upon this court’s suggestion, made at the commencement of argument, that some effort be made to rectify or clarify the record, we must take the appeal as it has been presented.
We have already noted, since Piper’s demurrer was addressed to the entire second count but did not reach the cause of action in negligence asserted in that count, it was error to sustain that demurrer. The plaintiff’s subsequent amendment of that count after the demurrer to it was sustained, however, operated as a withdrawal of that count, and the ruling on the demurrer addressed to that count cannot be made the subject of an appeal.
Antman
v.
Connecticut Light & Power Co.,
The demurrer of Avco and Eaton was not addressed to the entire unamended third and fourth counts but, as permitted by Practice Book § 106, only to two of the three causes of action set out in each count. Therefore the judgment as rendered was erroneous in declaring that, as to them, the entire complaint was insufficient. The causes of action sounding in negligence were not attacked by their demurrer, and no claim has been raised that the complaint does not allege as to each of them a good cause of action in negligence. Determination of the merits of those causes of action is still pending.
There remains for decision, therefore, the ruling of the trial court sustaining the demurrer of Avco and Eaton as to the causes of action other than negligence set out in the counts severally addressed against them. On his appeal, the plaintiff has not briefed the assignment of error directed to the rul
*557
ing on the demurrer so far as it held that the complaint failed to set out a good cause of action for breach of warranty, express or implied. Accordingly, this assignment of error is considered abandoned.
William Peck Lumber Co.
v.
Virmides, Inc.,
There remains for consideration only the plaintiff’s claim that the allegations of each of the counts directed against Avco and Eaton set forth, respectively, good causes of action based on principles of strict tort liability and that, accordingly, the trial court erred in sustaining the demurrer to the portions of the counts purporting to set out such a cause of action.
In testing the allegations against attack by demurrer, we must construe the complaint in the manner most favorable to the pleader.
Oppenheimer
v.
Connecticut Light & Power Co.,
We are, for the first time, presented on this appeal with the question what are the minimum essential allegations of a cause of action based on the theory of strict tort liability of a manufacturer or a seller of a product to an ultimate user or consumer. We have had occasion to consider various aspects of the developing law regarding products liability and recognition of strict tort liability as distinguished from liability predicated on contract or simple negligence. See
Garthwait
v.
Burgio,
In accepting the principles adopted by the American Law Institute as contained in the Restatement (Second) of Torts, we find ourselves in accord with the great majority of jurisdictions which have recently considered the problems arising out of products liability litigation. In our opinion in
Garthwait
v.
Burgio,
supra, 287, we noted the multitude of cases and voluminous legal literature on the topic since the landmark case of
Henningsen
v.
Bloomfield Motors, Inc.,
In testing the plaintiff’s complaint on this demurrer, we are not concerned with any question of actual proof as distinguished from both the possibility of proof under the allegations and what allegations are necessary to set out a cause of action. We have already noted that, negatively, it is unnecessary, in stating a case against a seller for strict tort product liability, to allege or prove privity of contract between the parties, or any reliance on the part of the plaintiff as a user or consumer on the reputation, skill or judgment of the seller, or any representation or undertaking on the part of that seller, or compliance with the provisions of the Uniform Commercial Code. General Statutes, tit. 42a. This does not mean, however, that there are no essential affirmative allegations or that the seller’s liability is absolute. Several conditions precedent to a seller’s liability are noted in § 402 A of the Restatement (Second) of Torts,
*562
and a plaintiff must at least allege and prove facts bringing himself within the requirements of that section. These include not only allegations that the defendant sold the product, that it was in a defective condition unreasonably dangerous to the user or consumer or to his property, that it caused physical harm to the consumer or user or to his property (see
Corneliuson
v.
Arthur Drug Stores, Inc.,
Since the present complaint contains no allegation that the product of either Avco or Eaton was expected to and did reach the plaintiff without substantial change in the condition in which it was sold by either of them, it lacks an allegation which is essential to the statement of a good cause of action based on strict tort product liability. Accordingly, there was no error in the ruling of the court sustaining the demurrer addressed to the portion of *563 the complaint which purported to allege such a cause of action.
There is error in the form of the judgment as to the defendants Avco Corporation and Eaton Manufacturing Company, it is set aside and the court is directed to render judgment sustaining the defendants’ demurrer to the third and fourth counts of the complaint only so far as those counts purport to allege a cause or causes of action based on liability other than on grounds of negligence; the appeal from the judgment rendered for the defendant Piper Aircraft Corporation is dismissed.
In this opinion the other judges concurred.
