Manufacturer
Airbus Helicopters
Number
FAA 2020-21-01
Model(s)
AS365N2/N3, EC155B/B1, and SA365N1
Published Date
Effective Date
Summary
Requires modifying the main gearbox tail rotor drive flange installation. Prompted by several reported occurrences of loss of tightening torque of the Shur-Lok nut, which serves as a retainer of the tail rotor drive flange.
UUID
397