                                                         United States Court of Appeals
                                                                  Fifth Circuit
                                                               F I L E D
                 IN THE UNITED STATES COURT OF APPEALS
                         FOR THE FIFTH CIRCUIT                 August 19, 2005

                                                           Charles R. Fulbruge III
                                                                   Clerk
                              No. 04-40558
                          Conference Calendar


UNITED STATES OF AMERICA

                       Plaintiff - Appellee

     v.

HUMBERTO LOPEZ-CRUZ

                       Defendant - Appellant

                          --------------------
             Appeal from the United States District Court
                  for the Southern District of Texas
                        USDC No. 1:04-CR-44-ALL
                         ---------------------

         ON REMAND FROM THE SUPREME COURT OF THE UNITED STATES

Before KING, Chief Judge, and DeMOSS and CLEMENT, Circuit Judges.

PER CURIAM:*

     On December 17, 2004, in an unpublished opinion, this court

affirmed the sentence of Humberto Lopez-Cruz.     United States v.

Lopez-Cruz, 115 Fed. Appx. 732 (5th Cir. 2004).     The Supreme

Court has vacated and remanded for further consideration in light

of United States v. Booker, 125 S. Ct. 738 (2005).       We requested

and received supplemental letter briefs addressing the impact of

Booker.



     *
       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this opinion should not be published and is not precedent except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.
                           No. 04-40558
                                -2-

     Lopez contends that the district court illegally sentenced

him pursuant to a mandatory Sentencing Guidelines regime, in

violation of Booker.   He concedes that such argument is raised

for the first time and is reviewable for plain error only.       See

United States v. Mares, 402 F.3d 511, 520-21 (5th Cir. 2005),

petition for cert. filed (U.S. Mar. 31, 2005) (No. 04-9517).

Sentencing a defendant pursuant to a mandatory guideline scheme,

standing alone, constitutes “Fanfan” error, and such an error is

“plain.”   See Booker, 125 S. Ct. at 750, 768-69 (addressing

preserved challenge in companion case); United States v.

Valenzuela-Quevedo, 407 F.3d 728, 732-33 (5th Cir. 2005).

     To satisfy the third prong of the plain-error test, Lopez

must show that his “substantial rights” were affected.     See

Valenzuela-Quevedo, 407 F.3d at 732.   “The pertinent question is

whether [the appellant] demonstrated that the sentencing judge

-–sentencing under an advisory scheme rather than a mandatory

one-–would have reached a significantly different result.”

Mares, 402 F.3d at 521.   This question requires us to assess

whether “there is [an] indication in the record from the

sentencing judge’s remarks or otherwise that gives us any clue as

to whether [ ]he would have reached a different conclusion” if

sentencing under an advisory scheme.   Id. at 522.   Lopez has

conceded that he cannot make such a showing under Mares.

     To the extent that Lopez argues that the Booker error is a

“structural” one that is not susceptible to a plain-error
                           No. 04-40558
                                -3-

analysis, or that he alternatively contends that plain-error

prejudice should be presumed, this court recently rejected such

arguments.   United States v. Martinez-Lugo, 411 F.3d 597, 601

(5th Cir. 2005).

     AFFIRMED.
