Summary
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.
Directive Details
AD Number
FAA-2017-1170
Document Number
2017-26949
Type
Rule
Publication Date
December 18, 2017
Effective Date
January 2, 2018
Affected Manufacturer
ATR-GIE Avions de Transport Régional
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2017-1170
Topics
Official Documents
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