Airworthiness Directive · Amendment 39-16256 · Stabilizers
Aircraft Industries a.s. Model L 23 Super Blanik Gliders
Superseded. A later AD replaced this one: AD 2010-15-05. Comply with the one in force.
This AD applies to Models L 23 Super Blanik gliders, all serial numbers, certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions:
(1) Before further flight as of April 26, 2010 (the effective date of this AD), inspect the elevator inner hinges on the stabilizer in accordance with paragraphs A.1., A.2. and A.4. of Aircraft Industries, a.s. Mandatory Bulletin MB No.: L23/052a, dated March 2, 2010.
(2) If, as a result of the inspection required by paragraph (f)(1) of this AD, you find any elevator inner hinge on the elevator is cracked or damaged, before further flight, replace it in accordance with paragraphs A.3. and A.4. of Aircraft Industries, a.s. Mandatory Bulletin MB No.: L23/052a, dated March 2, 2010.
Note: This AD differs from the MCAI and/or service information as follows: (1) The MCAI and the service information specify that you inspect the elevator inner hinges on the stabilizer, and if you find any elevator inner hinge on the elevator is cracked or damaged, before further flight, replace it. The MCAI also requires you to repetitively inspect the elevator inner hinges on the stabilizer at intervals not to exceed every 1,000 hours time-in-service (TIS). (2) This AD is considered an interim action because we are not including the mandatory repetitive inspection of the elevator inner hinges on the stabilizer at intervals not to exceed every 1,000 hours TIS. The Administrative Procedure Act does not permit the FAA to “bootstrap” a long-term requirement into an urgent safety of flight action where the rule becomes effective at the same time the public has the opportunity to comment. The short-term action and the long-term action are analyzed separately for justification to bypass prior public notice. (3) After issuing this AD, we may initiate further AD action (notice of proposed rulemaking followed by a final rule) to require that you repetitively inspect the elevator inner hinges on the stabilizer at intervals not to exceed every 1,000 hours TIS. Credit will be given in any subsequent action for the initial inspection done under this AD.
