Airworthiness directives › 2022-09-17
AD 2022-09-17 Airworthiness Directives; Scheibe-Aircraft-GmbH Gliders
Applicability*9
This AD applies to Scheibe-Aircraft-GmbH Model SF 25 C gliders, certificated in any category, that have Scheibe Modification 653E.41-S10 or 653C-41-S10.1 installed.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Before further flight after the effective date of this AD and thereafter at intervals not to exceed 12 months or 100 hours time-in-service, whichever occurs first, inspect all control sticks (other than part number (P/N) 20093, P/N 20093/G, P/N 20094, and P/N 20094/G) for corrosion by following Action 1, step 1.4, in Scheibe Aircraft GmbH Service Bulletin 653-96/1, dated April 4, 2022 (SB 653-96/1), except you may use a borescope instead of an endoscope. If there is any corrosion, before further flight, replace the affected control stick with a LH control stick P/N 20093 or P/N 20093/G; or a RH control stick P/N 20094 or P/N 20094/G by following Action 3 (all steps) in SB 653-96/1. (2) Replacing a control stick with LH control stick P/N 20093 or P/N 20093/G; or RH control stick P/N 20094 or P/N 20094/G, terminates the repetitive inspection for that control stick side only. Replacing both control sticks with LH control stick P/N 20093 or P/N 20093/G and RH control stick P/N 20094 or P/N 20094/G terminates the repetitive inspection for both sides. (3) As of the effective date of this AD, do not install on any glider a control stick that has a P/N other than LH control stick P/N 20093 or P/N 20093/G; or RH control stick P/N 20094 or P/N 20094/G.
Unsafe condition
This AD was prompted by 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 severe corrosion on the inner surface of the control stick tube. The FAA is issuing this AD to detect corrosion on the left-hand (LH) and right-hand (RH) control sticks, which, if not corrected, could lead to failure of the control stick tube and loss of control of the glider.
Affected ADs
None.
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