Airworthiness Directive · Amendment 39-19440 · Doors
Airbus SAS Airplanes
Superseded. A later AD replaced this one: AD 2019-16-11. Comply with the one in force.
This AD applies to Airbus SAS Model A300 F4-605R and A300 F4-622R airplanes, certificated in any category, on which Airbus SAS modification 12046 has been embodied in production. Modification 12046 has been embodied in production on manufacturer serial numbers (MSNs) 0805 and above, except MSNs 0836, 0837, and 0838.
We are superseding Airworthiness Directive (AD) 2016-25-03, which applied to certain Airbus Model A300 F4-600R series airplanes. AD 2016-25-03 required repetitive high frequency eddy current (HFEC) inspections of the aft lower deck cargo door (LDCD) frame forks; a one- time check of the LDCD clearances; and a one-time detailed visual inspection of hooks, eccentric bushes, and x-stops; and corrective actions if necessary. This AD requires repetitive HFEC inspections of the aft LDCD frame forks; a one-time check of the LDCD clearances; and a one-time detailed visual inspection of hooks, eccentric bushes, and x-stops; and corrective actions if necessary. This AD was prompted by a report of two adjacent frame forks that were found cracked on the aft LDCD of two airplanes during scheduled maintenance, and the introduction of frame fork reinforcement or repair procedures that, when done, allow an extension of repetitive inspection intervals. We are issuing this AD to address the unsafe condition on these products.
This paragraph restates the requirements of paragraph (g) of AD 2016-25-03, with revised compliance times and new service information. At the applicable time specified in paragraph (h) of this AD, or before exceeding the threshold defined in table 1 to paragraph (g) of this AD, whichever occurs later: Do the actions specified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD. Repeat the high frequency eddy current (HFEC) inspection specified in paragraph (g)(3) of this AD thereafter at intervals not to exceed the applicable times specified in table 1 to paragraph (g) of this AD.
(1) A one-time check of the aft LDCD clearances “U” and “V” between the latching hooks and the eccentric bush at FR60 through FR64A, in accordance with the instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015; or the Accomplishment Instructions of Airbus Service Bulletin A300-52-6086, Revision 01, dated May 29, 2018. If any value outside tolerance is found, adjust the latching hook before further flight, in accordance with the instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015; or the Accomplishment Instructions of Airbus Service Bulletin A300-52-6086, Revision 01, dated May 29, 2018.
(2) A one-time detailed inspection to detect signs of wear of the hooks, eccentric bushes, and x-stops, in accordance with the instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015. If any wear is found, do all applicable corrective actions before further flight, in accordance with the instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015.
(3) An HFEC inspection to detect cracking at all frame fork stations of the aft LDCD, in accordance with the instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015; or the Accomplishment Instructions of Airbus Service Bulletin A300-52-6086, Revision 01, dated May 29, 2018, 2016. If any crack is found, before further flight, replace the cracked frame fork, in accordance with the instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015; repair the cracked frame fork, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-52-6086, Revision 01, dated May 29, 2018; or reinforce the cracked frame fork, including doing all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-52-6085, Revision 01, dated May 2, 2018, except as required by paragraph (i) of this AD.
At the later of the times specified in paragraphs (h)(1) and (h)(2) of this AD, do the actions required by paragraph (g) of this AD.
(1) Before the accumulation of 4,500 total flight cycles.
(2) At the applicable time specified by paragraph (h)(2)(i) or (h)(2)(ii) of this AD.
(i) For airplanes that have accumulated 8,000 or more total flight cycles as of January 26, 2017 (the effective date of AD 2016-25-03): Within 100 flight cycles after January 26, 2017.
(ii) For airplanes that have accumulated fewer than 8,000 total flight cycles as of January 26, 2017 (the effective date of AD 2016-25-03): Within 400 flight cycles after January 26, 2017.
Where Airbus Service Bulletin A300-52-6085, Revision 01, dated May 2, 2018, specifies to contact Airbus for appropriate action: Before further flight, accomplish corrective actions in accordance with the procedures specified in paragraph (n)(2) of this AD.
Accomplishment of corrective actions on an airplane as required by paragraph (g)(1) or (g)(2) of this AD, or repair, reinforcement, or replacement of a frame fork as required by paragraph (g)(3) of this AD, on the aft LDCD of an airplane does not constitute terminating action for the repetitive HFEC inspections required by paragraph (g)(3) of this AD for that airplane.
After replacement, repair, or reinforcement of any frame fork on the aft LDCD of an airplane, as specified in paragraph (g)(3) of this AD, the next HFEC inspection as required by paragraph (g)(3) of this AD can be deferred for any frame fork that is replaced, repaired, or reinforced, but must be accomplished before exceeding 6,800 flight cycles after the replacement, repair, or reinforcement of that frame fork.
Although the Accomplishment Instructions of Airbus Alert Operators Transmission A52W011-15, Revision 00, dated July 23, 2015; and Airbus Service Bulletin A300-52-6086, Revision 01, dated May 29, 2018; specify to submit certain information to the manufacturer, this AD does not include that requirement.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
