Airworthiness directives › 2018-07-10
AD 2018-07-10 Airworthiness Directives; Embraer S.A. Airplanes
Models named: EMB-500, EMB-505. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Embraer S.A. Models EMB-500 and EMB-505 airplanes, serial numbers 50000246, 50000267, 50000286, 50000289, 50000291, 50000299, 50000304, 50000305, 50000306, 50000310, 50000348, 50000359, 50000368, 50000370, 50000372, 50000376, 50000377, 50000378, 50000379, 50000380, 50500118, 50500122, 50500148, 50500151, 50500167, 50500176, 50500179, 50500185, 50500188, 50500191, 50500197, 50500203, 50500207, 50500209, 50500212, 50500214, 50500215, 50500219, 50500225, 50500226, 50500231, 50500242, 50500244, 50500246, 50500248, 50500250, 50500256, 50500260, 50500266, 50500273, 50500275, 50500277, 50500280, 50500282, 50500285, 50500287, 50500288, 50500289, 50500292, 50500293, 50500294, 50500296, 50500297, 50500298, 50500300, 50500302, 50500304, 50500306, 50500309, 50500311, 50500317, 50500318, 50500323, 50500328, 50500331, 50500333, 50500335, 50500338, 50500340, 50500344, 50500345, 50500348, 50500351, 50500357, 50500361, 50500362, 50500363, 50500364, 50500365, 50500367, 50500368, 50500371, 50500372, 50500379, 50500381, 50500382, 50500385, 50500386, 50500390, 50500391, 50500394, 50500395, 50500397, 50500398, 50500399, 50500400, 50500402, 50500403, 50500404, 50500407, 50500410, 50500415, 50500418, and 50500424, certificated in any category.
Compliance
Unless already done, do the following actions in paragraphs (f)(1) and (2) of this AD following the Accomplishment Instructions in PHENOM by Embraer Alert Service Bulletin (SB) No.: 500-27-A026, Revision 1, dated October 6, 2017; or PHENOM by Embraer Alert SB No.: 505-27-A028, Revision 2, dated October 6, 2017, as applicable: (1) Within the next 25 hours time in service (TIS) after May 15, 2018 (the effective date of this AD) or within the next 12 months after May 15, 2018 (the effective date of this AD), whichever occurs first, inspect the aileron trim tab, rudder trim tab, and elevator trim tab attachment points to make sure the cotter pin is installed on the castle nut of the attaching bolts. (2) If any discrepancy is found during the inspection required in paragraph (f)(1) of this AD, before further flight, correct the discrepancy.
Required actions
This AD allows credit for the actions required in paragraph (f) of this AD if done before the effective date of this AD following PHENOM by Embraer Alert SB No. 500-27-A026, original issue, dated September 29, 2017; PHENOM by Embraer Alert SB No. 505-27-A028, original issue, dated September 28, 2017; or PHENOM by Embraer Alert SB 505-27-A028, Revision 01, dated September 29, 2017; as applicable.
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 describes the unsafe condition as improperly tied castle nuts on the aileron, rudder and elevator trim tab (or autotab) attachment bolts. We are issuing this AD to inspect the aileron trim tab, rudder trim tab and elevator trim tab (or autotab), and correct any discrepancy, which if not corrected, may cause an increase in dynamic loads and possible flutter, leading to structural failure and loss of control.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1