AD NUMBER: 2007-11-02
MANUFACTURER: Enstrom
SUBJECT: Airworthiness Directive 2007-11-02
SUMMARY: This amendment adopts a new airworthiness
directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model
F-28A, F-28C, F-28F, TH-28, 280, 280C, 280F, 280FX, 480, and 480B
helicopters that requires determining the installation dates for
each main rotor push-pull control rod (push-pull rod), inspecting
the push-pull rods for corrosion, replacing any push-pull rod which
has corrosion that is severe enough to cause pitting, or has
visible moisture inside the rod, and repairing each push-pull rod
that has corrosion but no pitting.