Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes; Correction

This document makes a correction to Airworthiness Directive (AD) 98-11-01 R2, which was published in the Federal Register on July 31, 1998 (63 FR 40807), and concerns Pilatus Aircraft Ltd. (Pilatus) Models PC-12 and PC-12/45 airplanes. Certain references to the AD number and amendment number in the document are incorrect. The AD currently requires replacing the fuel tank vent valves and drilling a 4.8 millimeter (0.1875 inch) hole in each fuel filler cap on certain Pilatus Models PC-12 and PC-12/45 airplanes. AD 98-11-01 R2 also requires inserting a temporary revision in the Pilot's Operating Handbook (POH) that specifies checking to assure that the fuel filler cap hole is clear of ice and foreign objects. This action corrects the AD to reflect the correct reference to the AD number and amendment number throughout the entire document.