Airworthiness directives › 2014-12-07
AD 2014-12-07 Airworthiness Directives; Agusta S.p.A. Helicopters
Applicability*9
This AD becomes effective July 7, 2014.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Matt Wilbanks, Aviation Safety Engineer, Regulations and Policy Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email matt.wilbanks@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) AgustaWestland Bollettino Tecnico No. 412-135, Revision A, dated July 29, 2013, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact AgustaWestland, Product Support Engineering, Via del Gregge, 100, 21015 Lonate Pozzolo (VA) Italy, ATTN: Maurizio D'Angelo; telephone 39-0331-664757; fax 39-0331-664680; or at http://www.agustawestland.com/technical-bulletins . You may review a copy of the service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth Texas 76137. (2) The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2013-0187, dated August 16, 2013. You may view the EASA AD on the Internet at http://www.regulations.gov in Docket No. FAA-2014-0378.
Unsafe condition
Within 100 hours time-in-service, magnetic particle inspect each rotor brake pinion for a crack. If there is a crack, before further flight, replace the rotor brake pinion.
Affected ADs
This AD defines the unsafe condition as a crack in a rotor brake pinion. This condition could result in failure of a rotor brake pinion, detachment of parts inside the transmission causing a malfunction or jamming, and subsequent loss of control of the helicopter.
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