Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145 and EMB-135 Series Airplanes
airworthiness · Rule · Final rule. · Published 2005-07-06 · Effective 2005-08-10 · 70 FR 38751
Document
Document number
05-13142
Federal Register citation
70 FR 38751
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-145 and EMB-135 Series
Publication date
2005-07-06
Effective date
2005-08-10
FAA docket
Docket No. 2004-NM-37-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain EMBRAER Model EMB-145 and EMB-135 series airplanes, that requires replacement of the engine-driven hydraulic pump. This action is necessary to prevent engine oil leakage at the coupling seal between the hydraulic pump and the engine gearbox from causing low engine oil levels, which could lead to in-flight engine shutdown and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.