Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2017-12-18 · Effective 2018-01-02 · 82 FR 59963
Document
Document number
2017-26949
Federal Register citation
82 FR 59963
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
ATR-GIE Avions de Transport Régional
Publication date
2017-12-18
Effective date
2018-01-02
FAA docket
Docket No. FAA-2017-1170
Abstract
We are adopting a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport R[eacute]gional Model ATR42-300 and -500 airplanes and Model ATR72-202 and -212A airplanes. This AD requires identifying the serial number of the dual distributor valve (DDV), and replacement of affected DDVs. This AD was prompted by an investigation performed on a failed DDV that revealed a nonconformity of crimping on an internal valve. We are issuing this AD to address the unsafe condition on these products.