Airworthiness Directive · Amendment 39-15294 · Landing gear
Airbus Model A318, A319, A320, and A321 Series Airplanes
This AD applies to Airbus Model A318, A319, A320, and A321 series airplanes, certificated in any category, except those identified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Manufacturer serial numbers (MSNs) 2389, 2392, 2393, 2396, 2398, 2403, 2405, 2407, 2409, 2410, 2411, 2413 through 2439, 2441, and MSNs above 2441, on which no replacement of the landing gear (LG) selector valve 40GA or the LG door selector valve 41GA has been performed since aircraft delivery from Airbus.
(2) Aircraft on which LG selector valve 40GA and LG door selector valve 41GA have been stamped to indicate that a duplicate inspection has been done. If the duplicate inspection has been done, the amendment plates on the valves will be stamped with letters “DI” or “DI-BE.”
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.
(1) For aircraft that have accumulated up to and including 20,000 total flight cycles as of the effective date of this AD: Within 4,500 flight cycles after the effective date of this AD, but not exceeding 20,800 total flight cycles, inspect for hydraulic leaking of the LG selector valve 40GA and the LG door selector valve 41GA and, as applicable, replace the LG selector valve 40GA and the LG door selector valve 41GA before further flight in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-32-1290, Revision 01, dated November 10, 2006.
(2) For aircraft that have accumulated over 20,000 total flight cycles as of the effective date of this AD: Within 800 flight cycles after the effective date of this AD, inspect for hydraulic leaking of the LG selector valve 40GA and the LG door selector valve 41GA and, as applicable, replace the LG selector valve 40GA and the LG door selector valve 41GA before further flight in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-32-1290, Revision 01, dated November 10, 2006.
(3) For all airplanes: Repeat the inspection specified in paragraph (f)(1) or (f)(2) of this AD, as applicable, thereafter at intervals not to exceed 20,000 flight cycles, or 89 months, whichever occurs first, and, as applicable, (i.e., if any leakage is found) replace the LG selector valve 40GA and the LG door selector valve 41GA before further flight, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-32-1290, Revision 01, dated November 10, 2006.
(4) For all airplanes: From the effective date of this AD, the installation of LG selector valve 40GA or LG door selector valve 41GA, that do not have the duplicate inspection “DI” or “DI-BE” recorded on their amendment plates, is possible provided that it is inspected within 800 flight cycles after installation, in accordance with the instructions given in Airbus Service Bulletin A320-32-1290, Revision 01, dated November 10, 2006. Repeat the inspection thereafter as given in paragraph (f)(3) of this AD.
(5) Actions done before the effective date of this AD in accordance with Airbus Service Bulletin A320-32-1290, dated May 2, 2006, are acceptable for compliance with the corresponding actions of this AD.
Note: This AD differs from the MCAI and/or service information as follows: No differences.
