allegedly defective motorcycle helmet). More importantly, the second collision doctrine covers "defects in design which do not cause accidents but do enhance or aggravate injuries." Bolm, 350 N.Y.S.2d at 648. As noted previously "the term 'second collision' usually refers to the collision between a passenger and an interior part of the vehicle following an impact or collision." Caiazzo, 647 F.2d at 243 n. 2. Tiner does not claim that a defect in a seat belt or air bag caused her accident; she claims only that her injuries were caused or enhanced by the failure of air bag and/or seat belt to function properly. Tiner also claims that various parts of her body hit interior parts of her vehicle after she drove into the light pole. Therefore, Tiner alleges a second collision within the meaning of Caiazzo.
III. Tiner's Claims
Tiner alleges that the seat belt in her car was defective because it failed to prevent her from moving forward and that the air bag was defective because it did not deploy upon impact. GM urges that Tiner has not offered competent proof with respect to either alleged defect and that she should not be allowed to offer proof on the seat belt claim because she did not ensure the preservation of the seat belts as evidence.
GM also maintains that even if Tiner has shown proof of a defect in the air bag or seat belt, she has shown no proof of enhanced injury. I find that Tiner has offered no competent proof of a defect in the seat belt, and therefore do not reach the spoliation claim. I also find dispositive Tiner's failure to present any evidence that she suffered enhanced injuries because the air bag did not deploy.
A. Seat Belt
Tiner's proof of a defect in the seat belt is confined to her own deposition testimony. She testified that the belt allowed her to move forward after the collision, so that her chest hit the steering wheel and her knees hit the underside of the dashboard. The belt also allowed her to move backward, so that her head hit the police cage behind her. Tiner believes that these facts permit the jury to infer that the seat belt did not function properly. In response, GM urges that the workings of and commonly accepted standards for seat belt systems are beyond the ken of the ordinary juror and require expert testimony and that Tiner has failed to offer the expert proof necessary to create an issue of fact. GM offers the affidavit of its engineer, Gerry Bahling, who claims a specialized knowledge and expertise concerning both air bags and seat belts. Bahling states that because Tiner did not suffer a head injury and did receive upper torso bruising, the seat belt system functioned properly during the accident. Bahling Aff. P 12.
A reasonable juror could not infer from Tiner's testimony about her movements after the collision that the seat belt suffered from either a design or manufacturing defect. "Certain issues, because of their scientific or technical complexity, require the special expertise of an expert witness." Food Pageant, Inc. v. Consolidated Edison Co., 54 N.Y.2d 167, 445 N.Y.S.2d 60, 62, 429 N.E.2d 738 (1981) (citation omitted). Matters such as the tolerance a seat belt should allow for movement after a collision are not within the ken of the average juror. Moreover, it is likely that many factors besides the seat belt design and manufacture -- issues such as maintenance, the proximity of the driver's seat to the steering wheel, and adjustments the driver made to seat belt settings -- could explain the degree or direction of movement allowed to the driver. A jury may infer that a product has a defect without actual proof of the particular defect only if the plaintiff (1) establishes that the product did not perform as intended, and (2) excludes all other causes for the accident. See Halloran v. Virginia Chem. Inc., 41 N.Y.2d 386, 393 N.Y.S.2d 341, 343, 361 N.E.2d 991 (1977); See also Brandon v. Caterpillar Tractor Corp., 125 A.D.2d 625, 510 N.Y.S.2d 165, 167 (2d Dep't 1986). Tiner has not offered any proof that the seat belt did not perform as intended. Nor has she offered proof excluding all other potential causes for any malfunction. Therefore, it would be improper to allow the jury to infer that the seat belt was defective.
Because Tiner has offered no competent proof of a defect in the seat belt, her claim on this issue must be dismissed.
B. Air Bag
Although she does not clearly articulate the distinction, Tiner claims both that the air bag was defectively manufactured and that it was defectively designed.
With respect to manufacturing defect, Tiner notes first that GM claimed in its response to interrogatories that its air bag is designed to open at "those moderate to severe frontal impacts, roughly equivalent to striking a fixed barrier at zero degrees at a speed between 9 m.p.h. and 15 m.p.h. or striking a parked vehicle weighing about the same as the Tiners' car at a speed of approximately 18 - 24 m.p.h." Pl. Ex. F-1. Tiner also submits repair records for the accident vehicle that do not show any repairs to the air bag prior to the accident. Because the air bag is a self-contained system and because the air bag did not deploy when Tiner hit the pole at a speed between fifteen and twenty miles per hour, she suggests that a jury could find the air bag was defectively manufactured.
GM's expert states that the Caprice's air bag is designed to deploy only when necessary to prevent serious or life-threatening injuries. Bahling Aff. P 8. GM claims that the very fact that Tiner did not receive severe or life-threatening injuries in this crash establishes that the air bag functioned as intended. I disagree. Tiner's lack of serious injury is some proof that the air bag functioned as intended. However, the jury could infer that the air bag failed to work properly from Tiner's testimony that it failed to deploy when she hit the pole at a speed of twenty miles per hour and GM's claim that the air bag should deploy when a vehicle strikes a fixed barrier at a speed between nine and fifteen miles per hour. Tiner's proof is marginal. Her accident, in which the center front of her car struck a pole, may well not have been the functional equivalent of the situation envisioned in GM's interrogatory response, which appears to contemplate a full frontal impact. Compare Pl. Ex. F-1 with Pl. Ex. F-2. However, GM has not argued this distinction or submitted expert proof to indicate its relevance. Therefore, I assume for the purposes of this discussion that Tiner has submitted sufficient proof of an air bag manufacturing defect.
Tiner also argues that she offered proof that GM defectively designed the air bag by showing that a safer alternative design existed. She relies on an internal GM document that states: "The current mainstream design includes a center-mounted forward sensor high in the vehicle to address pole and bumper underride impacts." Pl. Ex. O. The Tiners claim in their brief that the sensors in the accident vehicle were located only under the headlights and that a sensor in the middle of the bumper would have caused the air bag to deploy. This argument lacks any reference to facts of record. GM's expert indicates that the two sensors in the accident vehicle cause deployment of the air bag under exactly the same diagnostic criteria as the three-sensor model discussed by plaintiffs. Bahling Supp. Aff. P 10. There is therefore no competent proof in the record supporting plaintiffs' contention that a safer, feasible design for an air bag existed. Such proof is crucial to a design defect product liability case. See Voss, 463 N.Y.S.2d at 402. Therefore, the Tiner's claim that the air bag was defectively designed must be dismissed.
C. Enhanced Injuries
Tiner failed to offer competent proof of a defect in the seat belt or of a design defect in the air bag. She offered some proof of a manufacturing defect in the air bag. However, her air bag claim also must be dismissed because she wholly failed to show her injuries were caused or enhanced by any defect in the air bag.
A manufacturer cannot be held liable for injuries in a second collision unless those injuries are greater than the "injuries which would result from an impact in a reasonably designed and constructed vehicle." Bolm, 350 N.Y.S.2d at 649. Moreover, plaintiff has the burden of showing the extent of the enhanced injuries. Caiazzo, 647 F.2d at 250.
Tiner urges that there is no need for her to demonstrate enhancement because all of her injuries were caused by the failure of the air bag and/or the seat belt. She relies on the nature of the injuries themselves, that is, injuries to her knees, face, chest, and back and claims that it is self-evident that she would not have received these injuries had the air bag functioned properly. GM, however, submits competent expert proof not only that the deployment of an air bag cannot prevent all personal injuries but also that the deployment itself often cause injuries. Bahling Supp. Aff. PP 7-8. Under these circumstances, it is particularly appropriate to require Tiner to prove that her injuries were worse because the air bag failed to deploy. Id.
Tiner also relies on results of tests GM performed on the air bag that showed (1) a 95 percent chance of air bag deployment when the car struck a fixed barrier at fourteen miles per hour; and (2) that "the dummy face did not contact the wheel rim." Pl. Ex. F-3. Tiner suggests that these results demonstrate that the air bag would have protected her head and face from injury if it had deployed. However, because the results of the tests also show that the head of the unbelted dummy "went over the wheel rim and loaded the topper pad of the I/P [instrument panel]," they do not prove that Tiner would not have received any injury had the air bag deployed. Id.; see also Bahling Supp. Aff. P 9. Tiner therefore has presented no competent proof that her injuries were caused or enhanced by the alleged defect.
On a summary judgment motion, I must weigh the proof using the evidentiary standards to be applied at trial. Anderson, 477 U.S. at 252. Plaintiffs have the burden of proving by a preponderance of the evidence that defects in the air bag caused or enhanced Tiner's injuries. Because they have presented no competent proof on this issue, they have not met their burden and their air bag claim must be dismissed.
GM's motion for summary judgment is granted, and plaintiffs' complaint is dismissed.
IT IS SO ORDERED.
Dated: December 29, 1995
Syracuse, New York
Rosemary S. Pooler
United States District Court Judge