
    IN RE: Hubert JACKSON, Petitioner
    No. 16-2747
    United States Court of Appeals, Third Circuit.
    Submitted Pursuant to Rule 21, Fed. R. App. P. June 23, 2016
    (Opinion filed: July 22, 2016)
    Hubert Jackson, Somerset, PA, Pro Se.
    Before: CHAGARES, GREENAWAY, JR., and GARTH, Circuit Judges
   OPINION

PER CURIAM

Hubert Jackson is a Pennsylvania prisoner proceeding pro se. In September 2013, Jackson filed a complaint pursuant to 42 U.S.C. § 1983 in the United States District Court for the Western District of Pennsylvania alleging that the Court of Common Pleas judges presiding over his criminal eases failed to file valid sentencing orders. The District Court reviewed the complaint under the Prison Litigation Reform Act (PLRA) and dismissed it for failure to state a claim. See 28 U.S.C. § 1915A. Upon review, this Court affirmed the District Court’s judgment. Jackson v. Sec’y Pa. Dep’t of Corr., 598 Fed.Appx. 815 (3d Cir. 2015) (per curiam) (not precedential).

On June 2, 2016, Jackson filed this petition for a writ of mandamus. He claims that the District Court erred in screening his complaint under the PLRA because he is not a “prisoner” within the meaning of that statute; according to Jackson, he is not a “prisoner” because his state-court sentencing orders are invalid. On this ba-' sis, Jackson seeks a writ of mandamus compelling the District Court to reinstate his civil rights complaint.

We will deny the petition. Mandamus is an extraordinary remedy that we grant only when the petitioner has a “clear and indisputable” right to relief and “no other adequate means” to obtain it. In re Briscoe, 448 F.3d 201, 212 (3d Cir. 2006); see also In re Kensington Int’l Ltd., 353 F.3d 211, 219 (3d Cir. 2003). It is not a substitute for an appeal. Westinghouse Elec. Corp. v. Republic of Phil., 951 F.2d 1414, 1422 (3d Cir. 1991). We have already affirmed the District Court’s order dismissing Jackson’s civil rights complaint. He may not obtain further review of that order by way of mandamus.

Accordingly, we will deny the petition for writ of mandamus. 
      
       This disposition is not an opinion of the full Court and pursuant to I.O.P. 5.7 does not constitute binding precedent.
     
      
      . To the extent that Jackson also seeks to compel the Pennsylvania courts to "substantiate” his convictions and sentences, we do not have jurisdiction to grant that request. See In re Wolenski, 324 F.2d 309, 309 (3d Cir. 1963) (per curiam) (explaining that the district court "was without power to compel the Orphans' Court [of Delaware County, Pennsylvania] to act in this matter”); 19 George C. Pratt, Moore’s Federal Practice § 204.01[3][b] (3d ed. 2011) (“The circuit courts lack jurisdiction to issue a writ of mandamus to a state court.”).
     
      
      . The "Motion to Stop the Impediment of Petitioner's Pursuit of His Nonfrivolous Legal Claim” is also denied. The Clerk’s June 13, 2016 letter was sent to counsel for the Commonwealth defendants. To the extent that Jackson complains that the District Judge was not ordered to respond to his petition, a response was not necessary for our disposition. See Fed. R. App. P. 21(b)(1), (4).
     