Question juridique clé
Whether the arbitral tribunal was irregularly composed because its members lacked independence or impartiality after remand.
Solution extraite
No objectively ascertainable circumstances showed apparent bias. The remand bound the tribunal to the Federal Supreme Court’s reasoning and only one issue remained open; prior correction or annulment of the award did not suffice to establish a valid challenge.
Motifs extraits
A tribunal may not reconsider matters already decided by the remand judgment. Errors of procedure or even a materially wrong award do not, without particularly serious or repeated violations, create an appearance of bias. The same tribunal normally remains competent after annulment.