Airworthiness directives › 2013-22-16
AD 2013-22-16 Airworthiness Directives; Agusta S.p.A. (Type Certificate Currently Held by Agusta Westland) Helicopters
Applicability*9
This AD becomes effective December 13, 2013.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: John VanHoudt, Aerospace Engineer, FAA, Rotorcraft Directorate, Regulations and Policy Group, 2601 Meacham Blvd., Fort Worth, Texas 76137, telephone (817) 222-5110, email john.vanhoudt@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC.
Required actions
(1) The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2011-0140, dated July 20, 2011. You may view the EASA AD on the Internet at http://www.regulations.gov in Docket No. FAA-2012-0529.
Unsafe condition
Within 500 hours time-in-service or 5 months, or in the event of an AVIONICS FAULT crew alerting system (CAS) message, whichever occurs first, replace each co-pilot audio panel solder splice listed in Tables 1 and 2 of Agusta Bollettino Tecnico No. 139-249, dated July 13, 2011 (BT), by following the procedures in paragraphs 7.1 through 7.11. and Figures 12, 14, and 15 of the BT.
Affected ADs
This AD defines the unsafe condition as intermittent noise through the audio system during flight caused by improper installation of solder splices on the co-pilot's audio panel. This condition could result in degradation and complete loss of communications between the pilot and co-pilot during flight, impairing the co-pilot's capability to react immediately to operational difficulties, which could lead to subsequent loss of control of the helicopter.
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