Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France)
airworthiness · Rule · Final rule; request for comments. · Published 2015-01-15 · Effective 2015-01-30 · 80 FR 1997
Document
Document number
2015-00543
Federal Register citation
80 FR 1997
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus
Publication date
2015-01-15
Effective date
2015-01-30
FAA docket
Docket No. FAA-2014-1058
Abstract
We are adopting a new airworthiness directive (AD) for Airbus Helicopters (previously Eurocopter France) Model EC155B1 and AS 365 N3 helicopters with a certain automated flight control system (AFCS) and with a Garmin global positioning system (GPS) installed. This AD requires revising the Rotorcraft Flight Manual (RFM) to prohibit using the autopilot coupled with a Localizer/Instrument Landing System (LOC/ ILS) or Very High Frequency Omnidirectional Range (VOR) approach. This AD is prompted by a report of unpredictable and unexpected roll oscillations during coupled LOC or VOR approaches.This condition, if not corrected, could result in loss of helicopter control.