“We did this flight manual supplement to align the Outside Ambient Temperature (OAT) flight and ground limit for a floated Caravan with that of a wheeled Caravan,” explains Brad Kutz, vice president of engineering for Wipaire. “Prior to this, the ground OAT was limited to 42C (107.6F). Now, it has been raised to 47C (116.6F).”
Source: general aviationWipaire gets FAA nod for change to Caravans with floats