IN THE UNITED STATES COURT OF APPEALS
                         FOR THE FIFTH CIRCUIT

                       __________________________

                              No. 02-30172
                       __________________________


MARGIE B. BROWN; DIANNE DUGUE;
LORRAINE HUNTER; GLENN BUTLER,
                                                 Plaintiffs-Appellants,

v.

CATERPILLAR, INC.,
                                                       Defendant-Appellee.

          ___________________________________________________

         Appeal from the United States District Court for the
               Eastern District of Louisiana, New Orleans
                             (01-CV-1186-N)
          ___________________________________________________
                            December 6, 2002

Before JOLLY, DUHÉ, and WIENER, Circuit Judges.

PER CURIAM*:

     Margie B. Brown, Dianne Dugue, Lorraine Hunter, and Glenn

Butler (“Plaintiffs-Appellants”) appeal from the district court’s

grant of     summary   judgment   dismissing   their   products-liability

action against Caterpillar, Inc. (“Caterpillar”).              Plaintiffs-

Appellants sued Caterpillar under the Louisiana Products Liability

Act (“LPLA”) as representatives of the estate of George Butler, who

was killed while operating a backhoe manufactured by Caterpillar.



     *
        Pursuant to 5TH CIR. R. 47.5, the court has determined
that this opinion should not be published and is not precedent
except under the limited circumstances set forth in 5TH CIR.
R. 47.5.4.
Concluding that Plaintiffs-Appellants have not met their burden of

proffering material evidence of a genuine factual dispute that

would require a jury trial under the LPLA, we affirm.

                       I.   FACTS & PROCEEDINGS

     During the course of his employment with Barriere Construction

Company, Inc. (“Barriere”), Butler was killed while operating a

Model 416B backhoe front-end loader (“backhoe”) manufactured by

Caterpillar.    No one witnessed Butler’s death, but he apparently

was crushed between the backhoe’s boom and the rear stabilizer.

     Butler’s   supervisor,   David    McDaniel,   discovered   the    body

shortly after the accident occurred.        When McDaniel reached the

accident scene, he saw that (1) Butler was outside the operator’s

cab, pinned in a standing position between the boom and the rear

stabilizer; (2) the backhoe’s engine was still running; (3) a long

metal bar, neither manufactured nor furnished by Caterpillar, was

protruding from the operator’s cab; and (4) this metal bar was

pressing the swing control lever that activates the boom.

     McDaniel does not know why Butler was outside the operator’s

cab, why the metal bar was inside the cab, or why Butler left the

backhoe’s engine running when he dismounted the vehicle.        McDaniel

had previously instructed Butler to turn off the backhoe’s engine

when dismounting the vehicle and never to keep tools and supplies

in the operator’s cab.      To this date, it is unknown why Butler

dismounted the backhoe, and Barriere’s repeated inspections of the

vehicle   following   the   accident    revealed   no   malfunctions    or

                                   2
operational problems.

      As part of its manufacturing process, Caterpillar affixes

various warning labels to the Model 416B backhoe.                    One such

factory-installed decal was affixed in the area where Butler was

killed.      It warns: “Stay Clear of this area when machine is

operating.    You can be crushed by swinging boom.”            Each backhoe is

equipped with a “boom swing lock pin,” which, when enabled, renders

the   boom   swing    inoperative.     In     addition,   an    Operation   and

Maintenance Manual provided with each backhoe manufactured by

Caterpillar instructs operators to turn off the engine whenever

dismounting.      Finally, a decal in the operator’s cab warns users:

“Do not operate or work on this machine unless you have read and

understand the instructions and warnings in the Operation and

Maintenance Manual.”

      Plaintiffs-Appellants alleged that Caterpillar was liable for

Butler’s death under the LPLA.            They asserted claims based on

allegations of defective design and failure to warn.             The district

court   granted      Caterpillar’s   motion    for   summary    judgment    and

dismissed the suit against it, finding that Plaintiffs-Appellants

had produced no material evidence that Butler’s death was caused by

either a defective design or a failure to warn users of the

backhoe.     Plaintiffs-Appellants timely filed a notice of appeal.

                               II.   ANALYSIS

      We review a grant of summary judgment de novo, applying the



                                      3
same standard as the district court.1                       A motion for summary

judgment is properly granted only if there is no genuine issue as

to any material fact.2           In reviewing all the evidence, the court

must disregard all evidence favorable to the moving party that the

jury is not required to believe, and should give credence to the

evidence favoring the nonmoving party.3                      The nonmoving party,

however,        cannot   satisfy       his       summary   judgment       burden    with

conclusional allegations, unsubstantiated assertions, or only a

scintilla of evidence.4

     The LPLA provides that a “manufacturer of a product shall be

liable     to    a    claimant       for   damage     proximately     caused       by   a

characteristic of the product that renders the product unreasonably

dangerous when such damage arose from a reasonably anticipated use

of the product.”5        To be “unreasonably dangerous,” a product must,

inter    alia,       suffer   from    a    defect    in    its   design    or   provide

inadequate warnings.6          Furthermore, “[t]he characteristic of the


     

. Covan World Wide Moving, Inc., 

, 380
(5th Cir. 1998).
     2
       Fed.R.Civ.P. 56(c); Celotex Corp. v. Catrett, 

, 322 (1986).
     3
       Reeves v. Sanderson Plumbing Products, Inc., 

,
151 (2000).
     4
       Little v. Liquid Air Corp., 

, 1075 (5th Cir.
1994) (en banc).
     5
         LA. REV. STAT. ANN. § 9:2800.54(A) (West 1997).
     6
       

9:2800.54(B)(2)-(3). A product may also be
“unreasonably dangerous” under the LPLA because of its

                                             4
product that renders it unreasonably dangerous must exist at the

time the product left the control of its manufacturer or result

from a reasonably anticipated alteration or modification of the

product.”7

     This statute specifies four elements required to make out a

prima facie case against a manufacturer of a product:           A “claimant

must show (1) damage, that (2) was proximately caused by (3) a

characteristic of an unreasonably dangerous product during (4) a

reasonably anticipated use of that product.”8               At the summary

judgment stage, plaintiffs typically face a “two-tiered burden”

under the LPLA: they must proffer material evidence indicating that

(1) damage was “caused by a characteristic of the product that

renders it unreasonably dangerous,” and (2) damage occurred during

a “reasonably anticipated use” of the product.9            Having carefully

reviewed the record, the parties’ briefs, and the relevant case law

pertaining    to   the   LPLA,   we   agree   with   the   district   court’s

conclusion that Plaintiffs-Appellants failed to meet both of these

burdens.



construction, 

9:2800.54(B)(1), or its failure to conform
to an express warranty provided by the manufacturer, 

9:2800.54(B)(4).
     7
         

9:2800.54(C).
     8
         Pickett v. RTS Helicopter, 

, 928 (5th Cir.
1997).
     9
       Kampen v. American Isuzu Motors, Inc., 

, 309
(5th Cir. 1998) (en banc).

                                       5
       The principal means by which a products-liability plaintiff

submits material evidence of either a defective design or a failure

to warn is through an expert witness’s report.                             Yet at the time

Caterpillar filed its motion for summary judgment, Plaintiffs-

Appellants had not produced an expert’s report indicating either

the    availability         of    an    alternative        design     or    a   risk-utility

analysis      indicating          the    reasonableness          of    adopting       such    an

alternative design.               A court cannot assess whether a product is

“unreasonably         dangerous”          without       such       information.10            The

Plaintiffs-Appellants attempted to remedy this fatal omission by

belatedly          filing     a     letter      from       their      expert,      but       that

letter——comprising eight brief, summary paragraphs —— does nothing

more        than     reiterate          the         conclusional          allegations        and

unsubstantiated inferences of Plaintiffs-Appellants’ complaint.

       In contrast, Caterpillar provided extensive evidence through

its    submissions          of    copies       of    the    warning        decals,    backhoe

operational         manual,       deposition        testimony,      and    affidavits,       all

showing that         the    backhoe,       at   the     time   it     left      Caterpillar’s

control,      was    reasonably         safe    and    provided       adequate       warnings.

Simply put, Plaintiffs-Appellants have utterly failed to provide

factual support for a single, specific material allegation that

       10
       See Lavespere v. Niagara Machine & Tool Works, Inc., 

, 183 (5th Cir. 1990) (affirming, under the LPLA,
summary judgment for manufacturer because plaintiff’s “proof of
the risk that might have been avoided by the alternative design
and of the burden that switching to that design would have
entailed was, to say the least, incomplete”)

                                                6
would satisfy their burden under either the LPLA or Rule 56.11

      Furthermore,       Plaintiffs-Appellants          have      not   offered     any

material     evidence        indicating   that      Butler     was    engaged     in   a

“reasonably anticipated use” of the backhoe when he was killed.

Under the      LPLA,    “a    manufacturer    will     not   be      responsible    for

accounting for every conceivable foreseeable use of a product.”12

“If   a    plaintiff’s       damages   did    not    arise     from     a   reasonably

anticipated use of the product, then the ‘unreasonably dangerous’

question need not be reached.”13               Thus, if at the time of the

accident, Butler was using the backhoe in a manner that could not

reasonably have been anticipated by Caterpillar, neither we nor the

district court need even reach the issue whether the backhoe is

“unreasonably dangerous.”

      Plaintiffs-Appellants submitted only pure conjecture —— their

self-admitted suspicion —— that Butler may have been attempting to

investigate or fix a mechanical failure on the backhoe. They offer

no evidence for this theory beyond a purely speculative inference,

      11
       Green v. BDI Pharmaceuticals, 

, 72 (La. Ct.
App. 2001) (affirming summary judgment for defendant because
plaintiff’s “opposition to the motion for summary judgment, and
the attached documents, contained nothing related to any
alternative design”).
      12
           Butz v. Lynch, 

, 1218 (La. Ct. App. 2000).
      13
       

. See also Johnson v. Black &
Decker U.S., Inc., 

, 1366 (La. Ct. App. 1997) (“A
manufacturer can be liable only if the damage arose from a
reasonably anticipated use of the product, and if not, then a
court need not reach the issue of whether the product is
unreasonably dangerous.”).

                                          7
based on their interpretation of a photograph of the backhoe taken

after the accident, that there might have been an “implied leak” of

hydraulic fluid.      It remains essentially unknown, however, why

Butler dismounted from the backhoe; and Barriere’s documented

inspections of the backhoe after the accident revealed no evidence

of such a fluid leak —— or of any other malfunctions or operational

problems for that matter.

                               III.    CONCLUSION

     Like     their       summary     judgment    submissions,      Plaintiffs-

Appellants’ briefs contain a dearth of substantiated material

facts, but a plethora of unsubstantiated assertions and speculative

inferences piled on top of speculative inferences.             Under both the

LPLA and Rule 56,14 a products-liability plaintiff’s “burden is not

satisfied    [by   asserting]       ‘some    metaphysical   doubt   as   to   the

material facts.’”15        Because Plaintiffs-Appellants have submitted

nothing     more   than     bald    assertions    that   are   tantamount     to

“metaphysical doubt” concerning Caterpillar’s design of the backhoe

and Butler’s actions at the time of the accident, the district

     14
       “When a motion for summary judgment is made and supported
as provided in this rule, an adverse party may not rest upon the
mere allegations or denials of the adverse party’s pleading, but
. . . must set forth specific facts showing that there is a
genuine issue for trial.” FED. R. CIV. P. 56(e) (emphasis added).
See also Armstrong v. City of Dallas, 

, 67 (5th Cir.
1993) (“Summary judgment is appropriate where critical evidence
is so weak or tenuous on an essential fact that it could not
support a judgment in favor of the nonmovant.”).
     15
       

(quoting Matsushita Elec. Indust.
Co., Ltd v. Zenith Radio Corp., 

, 586 (1988)).

                                         8
court’s grant of summary judgment dismissing Plaintiffs-Appellants’

action against Caterpillar is, in all respects,

AFFIRMED.


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