Airworthiness directives › 2017-18-17
AD 2017-18-17 Airworthiness Directives; Airbus Airplanes
Models named: A300 B4-603, A300 B4-620, A300 B4-622, A300 B4-605R, A300 B4-622R, A300 F4-605R, A300 F4-622R, A300 C4-605R Variant F. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Airbus Model A300 B4-603, A300 B4-620, A300 B4-622, A300 B4-605R, A300 B4-622R, A300 F4-605R, A300 F4-622R, and A300 C4-605R Variant F airplanes; certificated in any category; all manufacturer serial numbers.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Except for airplanes identified in table 2 to paragraphs (g)(1) and (g)(2) of this AD: At the times specified in table 1 to paragraph (g)(1) of this AD, depending on the average flight time (AFT), as defined in paragraph (i) of this AD, modify the upper frame feet fittings, including doing all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-53-6125, Revision 04, dated March 17, 2015 (“SB A300-53-6125, Revision 04”). Do all applicable related investigative and corrective actions before further flight. Where Airbus SB A300-53-6125, Revision 04, specifies to contact Airbus for appropriate action, and specifies that action as “RC” (Required for Compliance): Before further flight, accomplish corrective actions in accordance with the procedures specified in paragraph (l)(2) of this AD. Table 1 to Paragraph (g)(1) of This AD—Modification SB A300-53-6125, Revision 04 Airplane usage Initial compliance time (flight cycles or flight hours, whichever occurs first since first flight) AFT greater than 1.5 Within 10,200 flight cycles or 22,100 flight hours. AFT equal to or less than 1.5 Within 11,000 flight cycles or 16,600 flight hours. Table 2 to Paragraphs (g)(1) and (g)(2) of This AD—Modification SB A300-53-6178 Airplane configuration Initial compliance time Post-modification 12168 Within 27,100 flight cycles or 47,300 flight hours since the airplane's first flight, whichever occurs first. Post-SB A300-53-6125 Within 27,100 flight cycles or 47,300 flight hours after embodiment of SB A300-53-6125, whichever occurs first. (2) For airplanes identified in table 2 to paragraphs (g)(1) and (g)(2) of this AD: At the applicable compliance time specified in table 2 to paragraphs (g)(1) and (g)(2) of this AD, modify the upper frame feet fittings, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-53-6178, dated March 17, 2015. Where Airbus Service Bulletin A300-53-6178, dated March 17, 2015, specifies to contact Airbus for appropriate action, and specifies that action as “RC”: Before further flight, accomplish corrective actions in accordance with the procedures specified in paragraph (l)(2) of this AD.
Unsafe condition
This AD was prompted by a report indicating that the material used to manufacture the upper frame feet was changed and negatively affected the fatigue life of the frame feet. We are issuing this AD to prevent cracking of the center section of the fuselage, which could result in a ruptured frame foot and reduced structural integrity of the airplane.
Affected ADs
This AD replaces AD 2004-23-20, Amendment 39-13875 (69 FR 68779, November 26, 2004) (“AD 2004-23-20”).
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