Airworthiness Directive · Amendment 39-16143 · Flight controls
AeroSpace Technologies of Australia Pty Ltd Models N22B, N22S, and N24A Airplanes
This AD applies to Models N22B, N22S, and N24A airplanes, all serial numbers, including airplanes with float/amphibian configuration, certificated in any category.
We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an 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) Visually inspect the left-hand and right-hand ailerons for damage (i.e., distortion, bending, impact marks) and repair or replace any damaged aileron found following instructions obtained from the contact listed in paragraph (i)(3) of this AD within the following time:
(i) For Models N22B and N24A airplanes: Inspect within 50 hours time-in-service (TIS) after December 23, 2003 (the effective date retained from AD 2003-22-13).
(ii) For Model N22S airplanes: Inspect within the next 10 hours TIS after November 8, 2006 (the effective date retained from AD 2006-21-12), or within 30 days after November 8, 2006 (the effective date retained from AD 2006-21-12), whichever occurs first.
(iii) For all airplanes: Repair or replace before further flight after the inspection where damage is found.
(2) Adjust the engine power lever actuated landing gear “up” aural warning microswitches, perform a ground test, and if deficiencies are detected during the ground test, make the necessary adjustments following Nomad Alert Service Bulletin ANMD-57-18, Rev 1, dated August 14, 2006, within the following time:
(i) For Models N22B and N24A airplanes: Within 50 hours TIS after December 23, 2003 (the effective date retained from AD 2003-22-13), unless already done following Nomad Alert Service Bulletin ANMD 57-18, dated December 19, 2002.
(ii) For Model N22S airplanes: Within the next 10 hours TIS after November 8, 2006 (the effective date retained from AD 2006-21-12), or within 30 days after November 8, 2006 (the effective date retained from AD 2006-21-12), whichever occurs first.
(3) For all airplanes: Do the following within the next 10 hours TIS after February 1, 2010 (the effective date of this AD) or within 30 days after February 1, 2010 (the effective date of this AD), whichever occurs first:
(i) Incorporate the maximum flap extension limitations specified in paragraph 2.D. of Nomad Alert Service Bulletin ANMD-57-18, Rev 1, dated August 14, 2006, into the Limitations section of the airplane flight manual (AFM). To show compliance with this paragraph of this AD, a copy of page 7 of Nomad Alert Service Bulletin ANMD-57-18, Rev 1, dated August 14, 2006, may be inserted into the Limitations section of the AFM. You may take “unless already done credit” for this subparagraph if done in accordance with AD 2006-21-12 and no further action is required to comply with this subparagraph.
(ii) Fabricate (using at least 1/8-inch letters) and install placards on the instrument panel within the pilot's clear view as specified in paragraph 2.E. of Nomad Alert Service Bulletin ANMD-57-18, Rev 1, dated August 14, 2006. You may take “unless already done credit” for this subparagraph if done in accordance with AD 2006-21-12 and no further action is required to comply with this subparagraph.
(iii) Incorporate the landing performance information specified in paragraph 2.F. of Nomad Alert Service Bulletin ANMD-57-18, Rev 1, dated August 14, 2006, into the Limitations section and the Performance section of the AFM.
(4) For all airplanes: Modify the outboard forward flap linkage (Modification N953) and modify the outboard aft flap (aileron) mass balance following Nomad Alert Service Bulletin ANMD-27-53, dated February 20, 2008, within the next 12 months after February 1, 2010 (the effective date of this AD). Accomplishment of all of the actions specified in Nomad Alert Service Bulletin ANMD-27-53, dated February 20, 2008, terminates the limitations requirements and the placard requirements specified in paragraph (f)(3) of this AD.
Note: This AD differs from the MCAI and/or service information as follows: No differences.
