AD 2014-09-02 Airworthiness Directives; M7 Aerospace LLC Airplanes

Models named: SA26-T, SA26-AT. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to M7 Aerospace LLC Models SA226-AT, SA226-T, SA226-T(B), SA226-TC, SA227-AC (C-26A), SA227-AT, SA227-TT, SA227-BC (C-26A), SA227-CC, and SA227-DC (C-26B) airplanes, all serial numbers; Model SA26-T airplanes, serial numbers T26-2 through T26-99; and Model SA26-AT airplanes, serial numbers AT26-100 through AT26-180E, certificated in any category.

Comply with this AD by doing the actions specified in paragraph (g) through paragraph (h) of this AD, including all subparagraphs, unless already done.

Initially replace and lubricate the aileron control cable chain, sprocket, and bearings, and check the aileron control cable tension based on the conditions and compliance times in paragraphs (g)(1), (g)(2), and (g)(3) of this AD, including all subparagraphs. The corrosion preventative must be removed from the chain (but not the cable) and the required actions must be done following the Accomplishment Instructions in M7 Aerospace LLC SA26 Series Service Bulletin 26-27-001 R3, dated April 8, 2014; M7 Aerospace LLC SA226 Series Service Bulletin 226-27-074 R2, dated October 23, 2013; M7 Aerospace LLC SA227 Series Service Bulletin 227-27-054 R2, dated October 23, 2013; and M7 Aerospace LLC SA227 Series Commuter Category Service Bulletin CC7-27-026 R2, dated October 23, 2013, as applicable. Criteria for the term “properly lubricated” is included in paragraphs 5a, 5b, and 5c of the Accomplishment Instructions section of M7 Aerospace LLC SA26 Series Service Bulletin 26-27-001 R3, dated April 8, 2014, and paragraphs 6a, 6b, and 6c of the Accomplishment Instructions section of M7 Aerospace LLC SA226 Series Service Bulletin 226-27-074 R2, dated October 23, 2013; M7 Aerospace LLC SA227 Series Service Bulletin 227-27-054 R2, dated October 23, 2013; and M7 Aerospace LLC SA227 Series Commuter Category Service Bulletin CC7-27-026 R2, dated October 23, 2013. (1) A review of the airplane records positively indicates that the aileron control cable chain in the pilot's and the copilot's control columns have been replaced and properly lubricated: At whichever of the compliance times specified in paragraphs (g)(1)(i) or (g)(1)(ii) of this AD that occurs later. (i) On or before reaching 10,000 hours time-in-service (TIS) from the time of the last aileron control cable chain replacement or within 13 years from the date of the last aileron control cable chain replacement, whichever occurs first. (ii) Within the next 24 months from June 5, 2014 (the effective date of this AD). (2) A review of the airplane records positively indicates that the aileron control cable chain in the pilot's and the copilot's control columns have been replaced within the last 10,000 hours TIS, but proper lubrication cannot be verified: At whichever of the compliance times specified in paragraphs (g)(2)(i) or (g)(2)(ii) of this AD that occurs first. (i) On or before reaching 10,000 hours TIS since the last replacement or within the next 1,000 hours TIS after June 5, 2014 (the effective date of this AD), whichever occurs later. (ii) Within the next 24 months from June 5, 2014 (the effective date of this AD). (3) A review of the airplane records does not positively indicate that the aileron control cable chain in the pilot's and the copilot's control columns have been replaced within the last 10,000 hours TIS: At the compliance times specified in paragraphs (g)(3)(i), (g)(3)(ii), (g)(3)(iii), and (g)(3)(iv) of this AD, as applicable. (i) For airplanes with less than 10,000 hours TIS: At whichever of the compliance times specified in paragraphs (3)(i)(A) or (3)(i)(B) of this AD that occurs first: (A) On or before reaching 10,000 hours TIS or within the next 1,000 hours TIS after June 5, 2014 (the effective date of this AD), whichever occurs later. (B) Within the next 24 months after June 5, 2014 (the effective date of this AD). (ii) For airplanes with 10,000 hours TIS or more but less than 20,001 hours TIS: Within the next 1,000 hours TIS after June 5, 2014 (the effective date of this AD) or within the next 12 calendar months after June 5, 2014 (the effective date of this AD), whichever occurs first. (iii) For airplanes with 20,001 hours TIS or more but less than 30,001 hours TIS: Within the next 750 hours TIS after June 5, 2014 (the effective date of this AD) or within the next 6 calendar months after June 5, 2014 (the effective date of this AD), whichever occurs first. (iv) For airplanes with 30,001 hours TIS or more: Within the next 400 hours TIS after June 5, 2014 (the effective date of this AD) or within the next 3 calendar months after June 5, 2014 (the effective date of this AD), whichever occurs first.

This AD was prompted by reports of jamming of the aileron control cable chain in the pilot and copilot control columns. We are issuing the AD to prevent jamming of the aileron control cable chain, which could result in loss of control.

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