Byrd v. Union Pacific Railroad Co.
453 F.Supp.3d 1260
D. Neb.2020Background
- Decedent Ronald Byrd worked for Union Pacific (UPRR) from 1971–2005 as an engineer/fireman and died of squamous cell lung cancer in 2015; he had a long smoking history and preexisting lung disease.
- Plaintiff (personal representative) sued under FELA alleging workplace exposure to diesel exhaust (and initially other toxins), later limiting claims to diesel exhaust and subcomponents.
- Plaintiff designated Dr. Joseph Landolph (toxicology/chemistry) for general causation/exposure estimates and Dr. Robert Gale (oncology/medicine) for medical causation (general and specific).
- Landolph relied on a one-page counsel summary and cancer potency factors/calculations from California OEHHA rather than site- or task-specific monitoring or dose reconstruction; Gale relied on Landolph’s calculations, published studies, and limited case materials, and used a Bayesian/differential-diagnosis approach but could not tie exposure to a causative dose or reliably rule out smoking.
- UPRR moved to exclude both experts under Daubert/Rule 702 and for summary judgment; the court excluded both experts as unreliable and granted summary judgment for UPRR.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Admissibility — general causation/exposure methodology | Landolph shows diesel exhaust and subcomponents are carcinogenic; OEHHA-based potency factors suffice to estimate Byrd’s exposure | OEHHA methods address population/ambient risk, not moving locomotive workers; experts lacked site-specific dose reconstructions and relied on a counsel-prepared summary | Excluded — opinions unreliable because methods did not establish Byrd’s exposure level; analytical gap between data and opinion |
| Admissibility — specific causation (Gale) / differential diagnosis | Gale applied Bayesian/differential etiology and concluded occupational exposure was a substantial contributing factor | Gale failed to ‘‘rule in’’ exposures (no dose) and failed to reliably ‘‘rule out’’ smoking as sole cause; used undisclosed online calculators | Excluded — Gale did not reliably apply differential diagnosis; could not link exposure magnitude to causation or rule out smoking |
| Summary judgment — FELA causation requirement | FELA uses a relaxed causation standard; plaintiff contends experts establish that employer negligence played a part | Without admissible expert medical causation testimony, plaintiff cannot prove causation under Daubert/Rule 702 | Granted — dismissal because no admissible causation experts remain to support FELA claim |
| Motion for evidentiary hearing under Rule 104(c) | Plaintiff sought an evidentiary hearing on expert admissibility | UPRR asked for a Daubert hearing as well | Denied — court decided admissibility on submitted materials and depositions |
Key Cases Cited
- Daubert v. Merrell Dow Pharm., 509 U.S. 579 (1993) (trial court gatekeeping on scientific expert admissibility)
- General Elec. Co. v. Joiner, 522 U.S. 136 (1997) (court may exclude expert opinion when analytical gap between data and opinion is too great)
- Kumho Tire Co. v. Carmichael, 526 U.S. 137 (1999) (Daubert gatekeeping applies to all expert testimony, not only pure science)
- CSX Transp., Inc. v. McBride, 564 U.S. 685 (2011) (FELA applies a relaxed causation standard but does not alter Daubert analysis)
- Bland v. Verizon Wireless, 538 F.3d 893 (8th Cir. 2008) (differential diagnosis can be reliable, but must be properly performed)
- Mattis v. Carlon Elec. Prod., 295 F.3d 856 (8th Cir. 2002) (toxic tort causation requires proof of general and specific causation)