An in-depth investigation has begun by the European Commission (Commission) to determine whether the €37.5m aid, that Poland intends to grant for the restructuring of PZL Hydral, complies with the EU Guidelines on State aid for rescuing and restructuring firms in financial difficulty. PZL Hydral produces industrial hydraulic and electronics hydromechanics fuel-regulating systems for aviation regimes. The Commission is examining not only whether the public funding complies with the Guidelines but also whether PZL Hydral is eligible for aid at all in view of the fact that the company has previously received state support.