airworthiness · Rule · Final rule. · Published 2018-01-16 · Effective 2018-02-20 · 83 FR 2039
Document
Document number
2018-00478
Federal Register citation
83 FR 2039
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus
Publication date
2018-01-16
Effective date
2018-02-20
FAA docket
Docket No. FAA-2017-0826
Abstract
We are superseding Airworthiness Directive (AD) 2015-22-53 for Airbus Helicopters Model AS350B3 helicopters. AD 2015-22-53 required revising the rotorcraft flight manual (RFM) to perform the yaw load compensator check after rotor shut-down and to state that the yaw servo hydraulic switch must be in the "ON" position before taking off. Since we issued AD 2015-22-53, Airbus Helicopters developed a modification of the ACCU TST switch. This new AD retains the requirements of AD 2015-22-53 and requires modifying the yaw servo hydraulic switch (collective switch) and replacing the ACCU TST button. The actions of this AD are intended to address an unsafe condition on these products.