Airworthiness Directive · Amendment 39-17138 · Wings
Airbus Airplanes
This AD applies to Airbus Model A310-203, -221, and -222 airplanes; certificated in any category; all manufacturer serial numbers (MSN), except airplanes having MSN 0415, 0419, 0424, 0427, 0430, 0454, 0468, 0486, and 0487.
We are adopting a new airworthiness directive (AD) certain Airbus Model A310-203, -221, and -222 airplanes. This AD was prompted by the manufacturer re-classifying slat extension eccentric bolts as principal structural elements with replacement due at or before their calculated fatigue lives. This AD replaces certain slat extension eccentric bolts with new bolts. We are issuing this AD to prevent fatigue cracking, which could result in the loss of structural integrity of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
(1) At the later of the times specified in paragraphs (g)(1)(i) and (g)(1)(ii) of this AD: Replace the slat extension eccentric bolts having part number (P/N) A5786451220800 at slat 2 track 6 on both wings with bolts having P/N A5784307920000, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310-57-2043, Revision 05, dated September 29, 2010.
(i) Before the accumulation of 14,000 total flight cycles or 19,000 total flight hours, whichever occurs first.
(ii) Within 6 months after the effective date of this AD.
(2) Concurrently with the actions specified in paragraph (g)(1) of this AD: Do a general visual inspection of the removed slat extension eccentric bolts having P/N A5786451220800 to detect cracking, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310-57-2043, Revision 05, dated September 29, 2010.
(i) If any cracking is found during the inspection required by paragraph (g)(2) of this AD: Before further flight, replace the slat extension eccentric bolt having P/N A57843624200 at slat 2 track 5, on the right or left wing as applicable, with a bolt having P/N A57843624202, in accordance with Accomplishment Instructions of Airbus Mandatory Service Bulletin A310-57-2099, dated July 22, 2011.
(ii) If no cracking is found during the inspection required by paragraph (g)(2) of this AD: Before the accumulation of 35,900 total flight cycles or 71,800 total flight hours, whichever occurs first, replace the slat extension eccentric bolt having P/N A57843624200 at slat 2 track 5, on the right or left wing as applicable, with a bolt having P/N A57843624202, in accordance with Accomplishment Instructions of Airbus Mandatory Service Bulletin A310-57-2099, dated July 22, 2011.
Within 30 months after the effective date of this AD: Replace the slat extension eccentric bolts having P/N A5786451220800 at slat 2 track 4 and track 7, and slat 3 track 8, on both wings, with bolts having P/N A5784307920000, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310-57-2098, dated July 22, 2011.
