                   United States Court of Appeals
                         FOR THE EIGHTH CIRCUIT
                                 ___________

                                 No. 11-1794
                                 ___________

Iris Clegg, individually and as the      *
personal representative of the estate of *
Ethon Allen Boyer,                       *
                                         *
              Appellant,                 *
                                         * Appeal from the United States
       v.                                * District Court for the
                                         * Western District of Arkansas.
U.S. Natural Resources, Inc., doing      *
business as USNR; USNR, doing            * [UNPUBLISHED]
business as Applied Theory; USNR,        *
doing business as Friedrich Air          *
Conditioning & Refrigeration; USNR, *
doing business as Interstate Machinery *
Erectors; USNR, doing business as        *
Irvington-Moore Schurman Machine; *
John Does 1-5,                           *
                                         *
              Appellees.                 *
                                    ___________

                           Submitted: January 10, 2012
                               Filed: June 28, 2012
                               ___________

Before WOLLMAN, LOKEN, and GRUENDER, Circuit Judges.
                          ___________
PER CURIAM.

       Ethon Boyer was working at an aluminum plant in 2006 when an explosion
tragically ended his life. Following the incident, Iris Clegg, Boyer’s mother, brought
an action against U.S. Natural Resources, Inc. (“USNR”), asserting that USNR
designed and manufactured a conveyor system used in the plant, that the system was
defective, and that the defect resulted in a “molten aluminum water explosion.”
Clegg appeals a jury verdict in favor of USNR, and we affirm for the reasons stated
below.

       At trial, USNR asserted various independent defenses. One of these was that
the explosion was not a molten aluminum water explosion—which, the parties agree,
can occur when molten aluminum spills into water and certain conditions are
satisfied—but instead was the result of some other cause, potentially a bomb. Over
Clegg’s objection, the district court admitted four expert reports relating to the cause
of the explosion. After deliberating for less than two hours, the jury returned a
verdict in favor of USNR. Clegg now appeals, arguing that the district court1
impermissibly admitted the four reports and impermissibly allowed the jury to have
those reports during its deliberations. As a result, Clegg asks that we remand for a
new trial with the reports excluded from evidence.

       “A district court’s rulings on admissibility of evidence are entitled to great
deference, and we will reverse only if the district court has committed a clear abuse
of discretion.” Safety Nat’l Cas. Corp. v. Austin Resolutions, Inc., 639 F.3d 498, 503
(8th Cir. 2011). We assume that the district court committed a clear abuse of
discretion by admitting the reports and allowing the reports to go to the jury during
deliberations. We conclude, however, that such error was harmless. “To be harmless


      1
      The Honorable Robert T. Dawson, United States District Judge for the
Western District of Arkansas.

                                          -2-
error, the admitted evidence must not have had a substantial influence on the verdict.”
Batiste-Davis v. Lincare, Inc., 526 F.3d 377, 381 (8th Cir. 2008). “[A] jury’s verdict
will not be disturbed absent a showing that the evidence was so prejudicial as to
require a new trial which would be likely to produce a different result.” Safety Nat’l,
639 F.3d at 503 (quoting Paul v. Farmland Indus., Inc., 37 F.3d 1274, 1277 (8th Cir.
1994)).

       The first report was a compilation of witness statements prepared by Dennis
Clark. During trial, Clegg reversed course and stated that she was not objecting to
admission of Clark’s report, thus waiving her objection to its admissibility. See
United States v. Slagg, 651 F.3d 832, 848-49 (8th Cir. 2011).2 We therefore decline
to consider Clegg’s arguments regarding the admissibility of Clark’s report, but we
also note that the jury heard much of the same information contained in Clark’s report
through testimony.

        John Jacoby prepared the second report. Some of Jacoby’s deposition
testimony was introduced at trial without objection, and that testimony expressed
substantially everything in Jacoby’s report that was harmful to Clegg’s position in the
litigation. In fact, Clegg states on appeal that Jacoby’s testimony “summarily restated
what was contained within a letter report he had written.” The essence of the third
report, prepared by Eric Uffman, was that tests of samples recovered from the plant
indicated the presence of a particular substance—which other testimony established
is found in the explosive C-4—but the portion of Uffman’s deposition testimony read
to the jury communicated that same information.




      2
       Clegg renewed her objection to Clark’s report at a later time in the trial, but
only after withdrawing the objection and relying on information in the report
favorable to her case. We decline to entertain this untimely effort.

                                         -3-
      The fourth report, prepared by Thomas Traubert, contained multiple pieces of
information and opinions adverse to Clegg’s case. However, the jury heard testimony
covering much of the report, including the conclusion that the explosion did not result
from the encapsulation of water by molten aluminum and that it instead resulted from
an explosive material not indigenous to the aluminum pouring machine or the casting
process. Moreover, USNR’s attorneys did not mention during closing argument any
portion of the opinions and information in Traubert’s report that had not been
presented to the jury through testimony. See McKnight ex rel. Ludwig v. Johnson
Controls, Inc., 36 F.3d 1396, 1405 (8th Cir. 1994) (noting, in support of a
determination that the admission of certain evidence was harmless, that counsel’s
closing argument made “very little reference” to the evidence in question); cf. Weems
v. Tyson Foods, Inc., 665 F.3d 958, 967 (8th Cir. 2011) (stating that the plaintiff’s
emphasis of certain evidence during closing argument suggested that the evidence
materially influenced the jury).

       Tony Foster, an expert witness at the trial, presented much of the same
information disclosed in the contested reports, stated that his investigation led him
to believe that “it was a C-4 explosive that caused this incident,” and testified that he
did not believe that the explosion was a molten aluminum water explosion.
Furthermore, the jury heard testimony indicating that the source of the explosion was
eighteen to thirty-six inches from the location where molten aluminum was poured
at the plant and that this indicated that the cause of the explosion was unrelated to the
liquid aluminum. Additionally, Jacoby testified that there are five observable
characteristics typically found after a molten aluminum water explosion of the
magnitude of the explosion at the plant but that he found only one of those
characteristics present in this case.

      In short, the written expert reports were predominantly cumulative of other
evidence presented to the jury. See United States v. Demery, 674 F.3d 776, 782 (8th
Cir. 2011) (concluding that the error in admitting certain testimony was harmless

                                          -4-
because the “testimony was largely cumulative of other evidence”). Ultimately,
USNR presented substantial evidence to the jury apart from the four reports to
support its position that it was not at fault for the explosion. See McKnight, 36 F.3d
at 1405 (“The harmful effect of the improperly admitted evidence is reduced where
there is substantial evidence in the record beyond the evidence improperly admitted
to support the jury’s decision.”). After considering the significant overlap between
the contested reports and the testimony presented to the jury, we deem harmless any
error in admitting the reports and allowing the jury to have them during its
deliberations because the reports were not “so prejudicial as to require a new trial
which would be likely to produce a different result.” See Safety Nat’l, 639 F.3d at
503 (quoting Paul, 37 F.3d at 1277).3
                        ______________________________




      3
        We reject Clegg’s contention that the admission of inadmissible evidence
cannot be harmless error if the evidence “is used to support a party’s position that is
central to the case.” See, e.g., Kostelecky v. NL Acme Tool/NL Indus., Inc., 837 F.2d
828, 830-31 (8th Cir. 1988) (deeming harmless, in a negligence case in which “[l]egal
causation was very much in dispute” and the verdict favored the defendant, the
admission of a report stating that the plaintiff’s own conduct resulted in his injury and
that the plaintiff could have avoided injury if he followed instructions, where other
reports in evidence reached similar conclusions).
                                            -5-
