Airworthiness Directive · Amendment 39-22220 · Aileron control system
NZSkydive Limited (Type Certificate Previously Held by Pacific Aerospace Ltd.) Airplanes
All NZSkydive Limited (type certificate previously held by Pacific Aerospace Ltd.) Model FBA-2C1, FBA-2C2, FBA-2C3, and FBA-2C4 airplanes, all serial numbers, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for NZSkydive Limited (type certificate previously held by Pacific Aerospace Ltd.) Model FBA-2C1, FBA-2C2, FBA-2C3, and FBA-2C4 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as a batch of aileron control chain sprockets being manufactured with a non-metallic sleeve insert in the sprocket bore, which can cause cracks to develop and affect the integrity of the aileron control chain sprockets. This AD requires inspecting the sprockets to determine if they have a non-metallic sleeve in the sprocket bore and replacing any sprocket found with a non-metallic sleeve in the sprocket bore with one with a metallic sleeve, and prohibits installation of aileron control chain sprockets with non-metallic sleeves in the sprocket bore. The FAA is issuing this AD to address the unsafe condition on these products.
(1) Before further flight after the effective date of this AD, remove the four aileron control chain sprockets in the control arm and yoke assembly and inspect the sprockets to determine if a non-metallic sleeve is fitted in the sprocket bore.
(2) If a non-metallic sleeve is found fitted in any aileron control chain sprocket bore, before further flight, replace the affected aileron control chain sprocket with a part that does not have a non-metallic sleeve.
(3) As of the effective date of this AD, do not install an aileron control chain sprocket part number C446, unless it has been inspected by following paragraph (g)(1) of this AD and found to have a metallic sleeve fitted in the sprocket bore.
Note to paragraph (g): Pacific Aerospace Mandatory Service Bulletin PACSB/2C/002, Issue 1, dated September 20, 2022, contains information related to this subject.
