Piper Aircraft last month received FAA certification for flight into known icing for the company’s new Meridian turboprop single. Piper is implementing a retrofit scheduling program to bring the fleet of approximately 100 Meridians up to the latest production standards, and will include modifications to allow for the approval. These modifications include a “potential change of material” for the de-ice boots, an update to the stall-warning computer and revisions to other components. All Meridians currently under construction and future aircraft will be equipped and approved, said Piper. However, the Vero Beach, Fla.-based company did not return telephone calls seeking additional information.