Airworthiness Directive · Amendment 39-19502 · Hydraulic power
Airbus SAS Airplanes
This AD applies to the airplanes identified in paragraphs (c)(1), (c)(2), (c)(3), (c)(4), and (c)(5) 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, -213 airplanes.
(5) Airbus SAS Model A340-311, -312, and -313 airplanes.
We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A330-200 Freighter series airplanes, Model A330-200 and -300 series airplanes, and Model A340-200 and -300 series airplanes. This AD was prompted by defects found during production tests of ram air turbine (RAT) units; investigation revealed that the defects were due to certain RAT hydraulic pumps having an alternative manufacturing process of the pump pistons. This AD requires replacing any defective RAT hydraulic pump with a serviceable part and re- identifying the RAT module part number. We are issuing this AD to address the unsafe condition on these products.
(1) An affected part is a RAT hydraulic pump having part number (P/N) 5916430 and a serial number identified in UTC Aerospace Systems Service Bulletin ERPS06M-29-22, dated March 17, 2017; Revision 1, dated June 27, 2017; or Revision 2, dated May 24, 2018.
(2) A serviceable part is a RAT hydraulic pump identified as acceptable in Airbus Service Bulletin A330-29-3130 or A340-29-4098, both dated May 3, 2017, as applicable.
(3) Group 1 airplanes are airplanes on which an affected part is installed.
(4) Group 2 airplanes are airplanes on which no affected part is installed. A Model A330 airplane on which Airbus SAS Modification 206604 has been embodied in production is a Group 2 airplane, provided that the airplane remains in that configuration.
(1) Within 18 months after the effective date of this AD, replace any affected RAT hydraulic pump with a serviceable part, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A330-29-3130 or A340-29-4098, both dated May 3, 2017, as applicable.
(2) Concurrently with the replacement required by paragraph (h)(1) of this AD, re-identify the part number of the RAT module, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A330-29-3130 or A340-29-4098, both dated May 3, 2017, as applicable.
Note 1 to paragraph (h)(2) of this AD: Airbus Service Bulletins A330-29-3130 and A340-29-4098, both dated May 3, 2017, provide guidance for re-identification of the part numbers of the RAT hydraulic pumps that are not affected, and the part numbers of the RAT modules that are not equipped with an affected hydraulic pump.
After re-identification of a RAT module on an airplane, as required by paragraph (h)(2) of this AD, the airplane remains compliant with the RAT module re-identification requirements of AD 2016-14-01 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
