Airworthiness Directive · Amendment 39-18342 · Tail rotor control system
Agusta S.p.A. Helicopters
Superseded. A later AD replaced this one: AD 2021-10-24. Comply with the one in force.
This AD applies to Agusta S.p.A. (Agusta) Model A109A and A109A II helicopters with a slider assembly pitch control (slider) part number 109-0130-11-7 installed, certificated in any category.
We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model A109A and A109A II helicopters. This AD requires inspecting the slider assembly pitch control (slider) for play and replacing the slider if the play exceeds certain limits. This AD is prompted by a report of excessive slider play and wear that was detected during a scheduled inspection of a Model A109A II helicopter. These actions are intended to detect and prevent excessive wear and play on a slider, which could lead to loss of tail rotor pitch control and consequently loss of helicopter control.
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
Within 25 hours time-in-service (TIS) and thereafter at intervals not to exceed 25 hours TIS, inspect the slider for play. If there is play greater than 2.3 millimeters (0.09 inch), replace the slider with an airworthy slider before further flight.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
