airworthiness · Rule · Final rule; request for comments. · Published 2018-02-06 · Effective 2018-02-21 · 83 FR 5182
Document
Document number
2018-02364
Federal Register citation
83 FR 5182
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus
Publication date
2018-02-06
Effective date
2018-02-21
FAA docket
Docket No. FAA-2018-0024
Abstract
We are adopting a new airworthiness directive (AD) for certain Airbus Model A318, A319, and A320 series airplanes and Model A321-111, -112, -131, -211, -212, -213, -231, -232 airplanes. This AD requires revising the airplane flight manual (AFM) to provide guidance to the flight crew for emergency procedures when erroneous airspeed indications are displayed on the back-up speed scale (BUSS). This AD was prompted by a determination that, when two angle of attack (AoA) sensors are adversely affected by icing conditions at the same time, data displayed on the BUSS could be erroneous. We are issuing this AD to address the unsafe condition on these products.