AD NUMBER: 2006-19-05
MANUFACTURER: Bell
SUBJECT: Airworthiness Directive 2006-19-05
SUMMARY: This amendment adopts a new airworthiness directive (AD) for the specified restricted category type-certificated helicopters. The AD requires a review of the helicopter records to determine the Commercial and Government Entity (CAGE) code of the tail rotor (T/R) slider. If the T/R slider is FAA approved or has a certain legible CAGE code, this AD requires no further action. If you cannot determine whether the T/R slider is FAA approved and it has no stamped CAGE code, an illegible stamped CAGE code, or an affected CAGE code, the AD also requires, before further flight and at specified intervals, magnaflux inspecting the T/R slider for a crack. If a crack is found,the AD requires, before further flight, replacing the T/R slider with an airworthy T/R slider. The AD also requires replacing the T/R slider with an airworthy T/R slider on or before accumulating 1,000 hours time-in-service (TIS) or on or before 12 months, whichever occurs first. This amendment is prompted by two accidents attributed to sub-standard T/R sliders that failed during flight. The actions specified by this AD are intended to prevent failure of a T/R slider, loss of T/R control, and subsequent loss of control of the helicopter.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/