Airworthiness directives › 2018-23-11
AD 2018-23-11 Airworthiness Directives; Airbus SAS Airplanes
Models named: A319-111, -112, -113, -114, -115, -131, -132, -133, A320-211, -212. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the airplanes identified in paragraphs (c)(1) through (c)(3) of this AD, certificated in any category, all manufacturer serial numbers, except those on which Airbus Modification 26925 has been embodied in production, which introduces a modified alternate braking system that removes the brake dual distribution valve (BDDV). (1) Airbus SAS Model A319-111, -112, -113, -114, -115, -131, -132, and -133 airplanes. (2) Airbus SAS Model A320-211, -212, -214, -231, -232, and -233 airplanes. (3) Airbus SAS Model A321-111, -112, -131,-211,-212, -213, -231, and -232 airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 3 months after the effective date of this AD, identify the BDDV part number installed on the airplane. For each affected BDDV part number specified in figure 1 to paragraphs (g) and (h) of this AD, within 3 months after the effective date of this AD, do the actions in paragraph (g)(1), (g)(2), or (g)(3) of this AD. A review of airplane maintenance records is acceptable to identify the BDDV part number if the part number of the BDDV can be conclusively determined from that review. ER14NO18.001 (1) Modify and re-identify the affected BDDV, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-32-1203, Revision 02, dated February 9, 2001. (2) Modify and re-identify the affected BDDV, and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-32-1415, Revision 02, dated December 10, 2015. Do all applicable related investigative and corrective actions before further flight. (3) Replace the affected BDDV with a BDDV having a part number not specified in figure 1 to paragraphs (g) and (h) of this AD, or replace the old part number with a new part number as specified in figure 2 to paragraphs (g)(3) and (h)(2) of this AD. Do the replacement using a method approved by the Manager, International Section, Transport Standards Branch, FAA; or the European Aviation Safety Agency (EASA); or Airbus SAS's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. ER14NO18.002
Unsafe condition
This AD was prompted by investigations that revealed that the cover seal of the brake dual distribution valve (BDDV) was damaged and did not ensure efficient sealing. We are issuing this AD to prevent water ingestion in the BDDV, freezing of the BDDV in flight, and consequent loss of braking system function after landing. These conditions could possibly result in damage to the airplane and injury to occupants.
Affected ADs
This AD affects AD 2001-15-10, Amendment 39-12344 (66 FR 39413, July 31, 2001) (“AD 2001-15-10”), and AD 2016-06-13, Amendment 39-18444 (81 FR 17365, March 29, 2016) (“AD 2016-06-13”).
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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