Airworthiness Directive · Amendment 39-15764 · Powerplant
Airbus Model A319, A320, and A321 Series Airplanes Equipped With International Aero Engines (IAE) Model V2500-A1 Engines or Model V25xx-A5 Series Engines
This AD applies to all Airbus Model A319-131, A319-132, A319-133, A320-231, A320-232, A320-233, A321-131, A321-231, and A321-232 series airplanes, certificated in any category; all serial numbers equipped with International Aero Engine (IAE) Model V2500-A1 engines or Model V25xx-A5 series engines. (The “xx” is used in the series engine reference to indicate various numbers listed in the type certificate data sheet.)
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions for airplanes equipped with IAE model V2500-A1 engines: Within 7 days after the effective date of this AD, conduct a records review to determine if barrel nut part number (P/N) 83644-1612 is installed, in accordance with paragraph 5.1 of Airbus All Operator Telex (AOT) A320-71A1045, dated October 17, 2008.
(1) For airplanes on which it can be positively determined from a records review that P/N 83644-1612 is not installed, no further action is required by this paragraph.
(2) For airplanes on which it cannot be positively determined from a records review that P/N 83644-1612 is not installed: Within 7 days after the effective date of this AD, do the visual inspections of the barrel nut for part numbers and for broken nuts in accordance with paragraph 5.2 of Airbus AOT A320-71A1045, dated October 17, 2008.
(i) If one or more barrel nuts are found broken, before further flight contact Airbus for corrective actions and do the corrective actions.
(ii) If two or more barrel nuts having P/N 83644-1612 are found installed, before further flight correct the installation in accordance with paragraph 5.2 of Airbus AOT A320-71A1045, dated October 17, 2008.
(iii) If only one barrel nut having P/N 83644-1612 is found installed: At the later of the times specified in paragraphs (f)(1)(iii)(A) and (f)(2)(iii)(B) of this AD, correct the installation in accordance with paragraph 5.2 of Airbus AOT A320-71A1045, dated October 17, 2008.
(A) Within 1,200 flight hours or 960 flight cycles since installation of the part, whichever occurs first.
(B) Within 7 days after the effective date of this AD.
(g) Unless already done, do the following actions for airplanes equipped with IAE Model V25xx-A5 series engines: Within 7 days after the effective date of this AD, conduct a records review to determine if barrel nut P/N 83644-1612 is installed, in accordance with paragraph 4.1 of Airbus AOT A320-71A1045, dated October 17, 2008.
(1) For airplanes for which it can be positively determined from a records review that P/N 83644-1612 is not installed, no further action is required by this paragraph.
(2) For airplanes on which it cannot be positively determined that P/N 83644-1612 is not installed: Within 7 days after the effective date of this AD, do the visual inspections of the barrel nut for part numbers and for broken nuts, in accordance with paragraph 4.2 of Airbus AOT A320-71A1045, dated October 17, 2008.
(i) If one or more barrel nuts are found broken, before further flight contact Airbus for corrective actions and do the corrective actions.
(ii) If two or more barrel nuts having P/N 83644-1612 are found installed, before further flight correct the installation in accordance with paragraph 4.2 of Airbus AOT A320-71A1045, dated October 17, 2008.
(iii) If only one barrel nut having P/N 83644-1612 is found installed: At the later of the time specified in paragraphs (g)(2)(iii)(A) and (g)(2)(iii)(B) of this AD, correct the installation in accordance with paragraph 4.2 of Airbus AOT A320-71A1045, dated October 17, 2008.
(A) Within 1,200 flight hours or 960 flight cycles since installation of the part, whichever occurs first.
(B) Within 7 days after the effective date of this AD.
(h) As of the effective date of this AD, no person may install an engine mount barrel nut, part number 83644-1612, on any affected airplane.
(i) Accomplishment of the corrective actions specified in paragraph (f) of this AD terminates the requirements of AD 90-22-08, amendment 39-6781.
Note 1: This AD differs from the MCAI and/or service information as follows: No differences.
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.
