Airworthiness Directive · Amendment 39-19601 · Hydraulic power
Airbus SAS Airplanes
This AD applies to the airplanes identified in paragraphs (c)(1), (c)(2), (c)(3), (c)(4), (c)(5), and (c)(6) of this AD, certificated in any category, all manufacturer serial numbers.
(1) Airbus SAS Model A330-223F and -243F airplanes.
(2) Airbus SAS Model A330-201, -202, -203, -223, and -243 airplanes.
(3) Airbus SAS Model A330-301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes.
(4) Airbus SAS Model A340-211, -212, and -213 airplanes.
(5) Airbus SAS Model A340-311, -312, and -313 airplanes.
(6) Airbus SAS Model A340-541 and -642 airplanes.
We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A330-200 Freighter, -200, and -300 series airplanes; and Airbus SAS Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted by reports of depressurization of hydraulic reservoirs caused by air leakage from the pressure relief valve (PRV) of the hydraulic reservoir (HR) due to the extrusion of the O-ring seal from certain HR PRVs. This AD requires replacing affected PRVs and re- identifying affected HRs. We are issuing this AD to address the unsafe condition on these products.
(1) Affected HRs are identified in table 1 to paragraphs (g), (h), and (i) of this AD.
(2) Affected parts are PRVs that have part number (P/N) 42F0026 and a serial number (S/N) identified in Safran Vendor Service Bulletin 42-29-005, Revision 01, dated September 26, 2017; and Safran Vendor Service Bulletin 42-29-006, Revision 01, dated September 27, 2017; as applicable.
(3) Group 1 airplanes have an affected part installed.
(4) Group 2 airplanes do not have an affected part installed. A Model A330 airplane on which Airbus SAS modifications 206863, 206864, and 206965 have been embodied in production is a Group 2 airplane, provided the airplane remains in that configuration.
(5) In table 1 to paragraphs (g), (h), and (i) of this AD: Green hydraulic circuit is (G), blue hydraulic circuit is (B), and yellow hydraulic circuit is (Y).
For Group 1 airplanes: At the applicable time specified in table 1 to paragraphs (g), (h), and (i) of this AD, replace each affected part in accordance with the applicable service information specified in paragraphs (h)(1) through (h)(7) of this AD.
(1) Airbus Service Bulletin A330-29-3131, dated August 11, 2017.
(2) Airbus Service Bulletin A330-29-3132, dated August 11, 2017.
(3) Airbus Service Bulletin A330-29-3133, dated August 11, 2017.
(4) Airbus Service Bulletin A340-29-4099, dated August 11. 2017.
(5) Airbus Service Bulletin A340-29-4100, dated August 11, 2017.
(6) Airbus Service Bulletin A340-29-4101, dated August 11, 2017.
(7) Airbus Service Bulletin A340-29-5026, dated August 11, 2017.
For Group 1 airplanes: Concurrently with the replacement of the affected part required by paragraph (h) of this AD, re-identify the part numbers of affected HRs as specified in table 1 to paragraphs (g), (h), and (i) of this AD, in accordance with the applicable service information specified in paragraphs (h)(1) through (h)(7) of this AD.
Replacement of all affected parts on an airplane, as required by paragraph (h) of this AD, terminates all requirements of AD 2017-01-08 for that airplane.
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.
Aircraft
