airworthiness · Rule · Final rule. · Published 2018-11-23 · Effective 2018-12-28 · 83 FR 59285
Document
Document number
2018-25387
Federal Register citation
83 FR 59285
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus SAS
Publication date
2018-11-23
Effective date
2018-12-28
FAA docket
Docket No. FAA-2018-0764
Abstract
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.