Airworthiness directives › 2018-21-09
AD 2018-21-09 Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Models named: ATR42-200, -300, -320, -500. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to ATR-GIE Avions de Transport Régional Model ATR42-200, -300, -320, and -500 airplanes, certificated in any category, all manufacturer serial numbers.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within the initial compliance time specified in table 1 to paragraph (g) of this AD, and thereafter at intervals not to exceed 48 months or 6,000 flight cycles, whichever occurs first: Do a detailed visual inspection for discrepancies on the left-hand and right-hand wings, of the outer wing box upper skin and upper rib feet, between rib 24 and rib 29. Do the inspection in accordance with the Accomplishment Instructions of ATR Service Bulletin ATR42-57-0074, Revision 01, dated January 8, 2018. ER16OC18.001
Unsafe condition
This AD was prompted by reports of cracking on the left-hand and right-hand wings, of the outer wing box upper skin and upper rib feet. We are issuing this AD to address discrepancies ( e.g., cracking, loose/sheared fasteners, distortion) on the left-hand and right-hand wings, of the outer wing box upper skin and upper rib feet, which could result in reduced structural integrity of the airplane.
Affected ADs
This AD replaces AD 2006-07-26, Amendment 39-14553 (71 FR 18205, April 11, 2006) (“AD 2006-07-26”).
Read the original on the Federal Register →
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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