429 F.Supp.3d 566
N.D. Ind.2019Background
- Plaintiffs John and Lori Simpson sued General Dynamics (Simunition) under the Indiana Product Liability Act after a Simunition 9mm marking cartridge struck John Simpson’s right elbow during force-on-force training, causing a detached tricep and ongoing neuropathy despite multiple surgeries.
- Simunition rounds are marking cartridges fired from blue Glock replicas; manufacturer materials warn of bruises/welts and mandate head, throat, and groin protection but do not require elbow protection.
- Plaintiff’s ballistics expert John Nixon purchased and disassembled Simunition rounds, measured one cartridge with .9 grains of propellant (manufacturer spec = .3 grains), and opined that overcharged rounds increase kinetic energy and wounding potential; Nixon also identified non-projectile training alternatives (laser/recoil simulators).
- Defendant moved for summary judgment arguing plaintiffs’ expert opinion is insufficient to prove manufacturing defect, design defect, or failure to warn; Defendant also moved to strike Nixon’s affidavit as untimely.
- The court denied the motion to strike, found Nixon’s late affidavit harmless, denied summary judgment as to manufacturing defect and failure-to-warn claims, granted summary judgment on the design-defect claim, and preserved the derivative loss-of-consortium claim.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Motion to Strike Nixon affidavit | Affidavit supplies additional expert support (alternative designs, elbow-risk) | Untimely new opinion disclosed after expert discovery; should be excluded | Denied — court found no prejudice; affidavit does not save design claim but is not stricken |
| Manufacturing defect (strict liability) | Overcharge evidence (.9 gr vs .3 gr spec) and expert testimony permit inference the fired round deviated from design and caused injury | No direct proof the fired round was overcharged; no sabot separation or loud signature reported | Denied — circumstantial expert evidence allows a jury to infer an overcharge/manufacturing defect |
| Design defect (negligence) | Simunition’s energy, recommended stand-off, and available safer systems show defective design or feasible alternatives | No expert opinion that the cartridge’s velocity or design was negligently created; alternatives cited are different products and lack cost‑benefit proof | Granted — Nixon did not opine that design was negligent or supply a feasible, cost‑effective alternative |
| Failure to warn (negligence) | Warnings omitted or minimized risks (no mandatory elbow protection; no specific warning about overcharge risk) and defendant marketed elbow protection | Dangers were open and obvious; warnings covered expected risks (bruises/welts) | Denied — genuine dispute whether warnings were adequate as to latent severe risks; jury question |
| Loss of consortium (derivative) | Derivative of surviving IPLA claims | Should fail if IPLA claims fail | Denied — survives because manufacturing‑defect and failure‑to‑warn claims survive |
Key Cases Cited
- Celotex Corp. v. Catrett, 477 U.S. 317 (summary judgment burden and shifting)
- NutraSweet Co. v. X-L Eng'g Co., 227 F.3d 776 (untimely expert disclosures ordinarily excluded unless justified or harmless)
- David v. Caterpillar, Inc., 324 F.3d 851 (factors to consider before excluding untimely expert testimony)
- TRW Vehicle Safety Sys., Inc. v. Moore, 936 N.E.2d 201 (IPLA prescribes negligence standard for design‑defect claims)
- Brewer v. PACCAR, Inc., 124 N.E.3d 616 (IPLA governs product defect types)
- Whitted v. Gen. Motors Corp., 58 F.3d 1200 (circumstantial evidence can support manufacturing‑defect inference)
- Aregood v. Givaudan Flavors Corp., 904 F.3d 475 (choice of law/IPLA application; duty to warn of latent dangers)
- Weigle v. SPX Corp., 729 F.3d 724 (discussion of feasible alternative design/cost‑benefit in product cases)