Airworthiness Directive · Amendment 39-17112 · Ac generation system
PZL Swidnik S.A. Helicopters
This AD applies to PZL Swidnik S.A. (PZL) Model PZL W-3A helicopters with a generator air outlet collector, part number (P/N) GT40PCz8B; certificated in any category.
We are adopting a new airworthiness directive (AD) for the PZL Swidnik S.A. (PZL) Model PZL W-3A helicopter with a certain generator air outlet collector (collector) installed. This AD requires modifying the generator air outlet collector attachments (collector attachments). This AD is prompted by an incident where cyclic control stick movement was restricted due to rotation of a loose collector, resulting in locking of the longitudinal control system hydraulic actuator fork end. These actions are intended to prevent rotation of the collector, which could lead to restricted cyclic control stick movement, and subsequent loss of control of the helicopter.
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 100 hours time-in-service, modify the generator air outlet collector attachments in accordance with Section II and Sketches 1 and 2 of PZL-Swidnik Service Bulletin No. BS-37-09-230, dated October 13, 2009.
