Opinion by
Nicholas Frangís, plaintiff below, appeals from the lower court’s denial of his motion to remove a judgment of compulsory non-suit.
In the early afternoon of April 28, 1969, the appellant wаs driving his automobile in a westerly direction on Route 30 in Allegheny County, and allegedly collided with a utility pole owned by the appellee, Duquesne Light Co. 1 At the scene of the accident, Routе 30 consists of three lanes in each direction, separated by a grassy and dirt medial area. The utility pole was located within the medial area, approximately ten inches from the highway. The appellant testified that he was travel-ling at approximately 30 miles per hour in the extreme left-hand lane when he collided with the pole.
All of the witnesses called on behalf of the appellant testified that it was raining on the date of the accident, *422 and all agreed that the car came to rest on the divider strip with its wheels in the air. John Coyne, a tractor-trailer driver, testified that he was driving in the same direction as the appellant and viewed the occurrence through his rear view mirror. Coyne testified that he saw an “automobile trаvelling end over end like front to rear coming down the fast lane of the roadway, and it finally come to rest against the pole and bounced back on the ground.” Officer Wood testified thаt the pole located at the point the car was found was bent “at the ground level at an angle.” John Barsala, another eyewitness, testified that he was travelling on the other side of the highway. He corroborated Coyne’s testimony that the car was “flipping”, struck a utility pole, and bounced back to the ground. Significantly, Barsala contradicted the appellant’s stаtement that he was driving in the left-hand lane, and had never changed lanes:
“Q. What lane was the automobile travelling?
A. When I first noticed the car, there was only two lanes coming on that little bridge. He would be over in the ■ right-hand lane and swung over into the lefthand lane.
Q. How long did you have occasion to notice the car?
A. A couple of seconds.
Q. In those couple of seconds, what did you see this car do?
A. When it started to pass the truck, it started to flip. . . .
Q. What kind of truck was it?
A. A large truck, I don’t know what....
Q. And it passed the truck did you say?
A. I don’t think he ever got past the truck. He started to flip when he got to the back end of the truck.”
Barsala furthеr testified that the appellant had fallen out of the car during one of the “flips” and came to rest underneath the vehicle. Neither Coyne nor Barsala was able to state what рrecipitated the flipping of appellant’s *423 car. At the conclusion of the appellant’s evidence, the trial judge granted the appellee’s motion for compulsоry non-suit.
It is axiomatic that a non-suit is properly entered only in a clear case.
Hader v. Coplay Cement Mfg. Co.,
Utility companies have long been held liable for harm caused by the negligent placement and maintenance of utility poles.
Nelson v. Duquesne Light Co.,
The mere existence of negligence and the occurrence of injury, however, are insufficient to impose liability upon the tortfeasor.
Dornon v. Johnston,
According to the Restatement, a defendant’s negligencе is the “legal cause” of a plaintiff’s injuries if it is a substantial factor in bringing about the harm. Defendant’s negligence, however, is
not
a substantial factor “if the harm would have been sustained even if the aсtor had not been negligent.” Restatement (Second) of Torts, §432(1). The latter is a question of fact. In the present case, the appellee clearly owed a duty to the plaintiff, and it was manifestly foreseeable that the appellee’s negligent conduct could cause injury to the appellant. Thus, there is no difficulty in finding “proximate” causation. However, the obverse of what was said in
Flickinger Estate,
supra, is apposite to this case: “It should be made clear at the outset that we are not here concerned with the concept of
factual causation.
Appellee Marona does not dispute that the jury could have and did find that but for the presence of the sewer excavation fill which Marona had piled on the berm of the roadside, George Flickinger would not have died in a collision with Ritsky’s automobile. Thus liability is not blocked by the rule of the Restatement (Second) of Torts §432(1). We are rather concerned with the problem of proximate causation, a concept which is often confused with that of factual causation. The latter is invariably a question of fact;
*425
the former ‘is essentially a problem of law . . . whether thе defendant should be legally responsible for what he has caused.’ W. Prosser, Law of Torts §49, at 282 (1964).”
Unlike Flickinger, therefore, the problem in the instant case is to decide whether the lower court correctly ruled that the appellant’s evidence was insufficient, as a matter of law, to prove that his injuries resulted from the appellee’s negligence. In short, it must be determined whether liability is blоcked by §432(1) of the Restatement.
The burden of proving factual causation lies with the appellant. It was incumbent upon him to prove that his injuries would not have been sustained had the appellee not been negligent. For example, in
Cuthbert v. Philadephia,
supra, the plaintiff was crossing a public street in Philadelphia. As the traffic light changed, she heard the screech of tires and started to run to the other side. In so doing, the plaintiff allegedly tripped over a hole in the street and sustained injuries. The Court held that the plaintiff failed to prove factual cause as a matter оf law and that the trial judge erred in submitting the case to the jury: “Mrs. Cuthbert may very well have fallen into the defect as she alleged, but she has failed to prove any facts upon which a jury would have been justified in so finding.”
*426 In the instant case, witnesses Coyne and Barsala testified that the appellant’s automobile “flipped” end over end several times bеfore striking the utility pole near which it eventually landed. Neither was able to state what caused the vehicle to go out of control. The appellant testified that he remembers оnly striking a utility pole. The appellant argues that the testimony of the three witnesses is perfectly compatible: Mr. Frangis struck a pole which caused his automobile to flip end over end until it eventually collided with a second pole, the one witnessed by Coyne and Barsala. In other words, the appellant contends that the record allows his own testimony to supply the “cause” of the flipping, and thus is consonant with the testimony of the eyewitnesses. As in Cuthbert v. Philadelphia, the appellant’s version may very well be accurate. Unfortunately there are no facts of recоrd which would enable the jury to support this theory.
The appellant testified that he struck
a
pole, and that is the last thing he remembers. There is no testimony regarding
which
pole the appellant struck. The appellant, therefore, has failed to show how the accident occurred. See
Watkins v. Sharon Aerie No. 327 F.O.E.,
Order affirmed.
Jacobs, J., concurs in the result.
Notes
. The appellee failed to file an answer to the appellant’s complaint and thus admits that it owned or maintained the utility pole at issue.
