Airworthiness Directives; Boeing Model 777-200 and -300 Series Airplanes

This document corrects two typographical errors that appeared in airworthiness directive (AD) 99-25-13 that applies to all Boeing Model 777-200 and -300 series airplanes. That AD currently requires revising the Limitations Section of the Airplane Flight Manual to prohibit the dispatch of certain airplanes under certain conditions. That AD also requires repetitive inspections to ensure correct operation of the backup generators; and, for certain airplanes, a one- time inspection to detect damage of the engine external gearbox; and corrective actions, if necessary. This document corrects incorrect paragraph references. This correction is necessary to ensure that operators accomplish the appropriate requirements of the AD.