Airworthiness directives › 2012-06-22
AD 2012-06-22 Airworthiness Directives; Airbus Airplanes
Models named: A340-541, -642. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Airbus Model A340-541 and -642 airplanes, certificated in any category, all manufacturer serial numbers.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Required actions
Before the accumulation of the applicable threshold specified in paragraph 1.E. Compliance, Table 2, of Airbus Mandatory Service Bulletin A340-57-5029, including Appendices 01 and 02, dated February 25, 2011, or within 90 days after the effective date of this AD, whichever occurs later: Do a high frequency eddy current inspection of the external radius on upper horizontal cruciform fitting at FR47 on the left- and right-hand sides for cracks, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A340-57-5029, including Appendices 01 and 02, dated February 25, 2011. Where the “Threshold” column of Table 2, specified in paragraph 1.E., “Compliance,” of Airbus Mandatory Service Bulletin A340-57-5029, including Appendices 01 and 02, dated February 25, 2011, specifies the compliance time as “FC” and “FH,” this AD requires the compliance times as “total flight cycles” and “total flight hours.” The thresholds for airplane post-modification number 56558S19405 must be counted from the airplane's first flight and not from the accomplishment of Airbus Service Bulletin A340-57-5010.
Unsafe condition
This AD was prompted by reports that during fatigue testing, damages occurred in the external radius on the upper horizontal cruciform fitting at frame (FR) 47 on the left- and right-hand sides. We are issuing this AD to detect and correct fatigue cracking, which could adversely affect the structural integrity of the airplane.
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