Airworthiness directives › 2014-11-07
AD 2014-11-07 Airworthiness Directives; Agusta S.p.A Helicopters (Type Certificate Currently Held by AgustaWestland S.p.A) (Agusta)
Applicability*9
This AD becomes effective June 18, 2014.
Compliance
(1) The Manager, Safety Management Group, Rotorcraft Directorate, FAA, may approve AMOCs for this AD. Send your proposal to: Robert Grant, Aviation Safety Engineer, Safety Management Group, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email robert.grant@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) Agusta Bollettino Tecnico (BT) No. 109-137 for Model A109A, A109A II and A109C helicopters; BT No. 109EP-131 for Model A109E helicopters; BT No. 109K-59 for Model A109K2 helicopters; BT No. 109S-056 for Model A109S helicopters; BT No. 109SP-070 for Model AW109SP helicopters; and BT No. 119-062 for Model A119 and AW119 MKII helicopters, all Revision 0 and dated October 29, 2013, which are not incorporated by reference, contain 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-bullettins. 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) Emergency AD No. 2013-0265-E, dated October 30, 2013. You may view the EASA AD on the internet at http://www.regulations.gov in Docket No. FAA-2014-0336.
Unsafe condition
(1) Within 10 hours time-in-service (TIS), using a light, visually inspect each nut, P/N MS21042-4, which connects the swashplate support to the upper case of the main transmission for a crack. (i) If there is a crack, before further flight, remove all six nuts, P/N MS21042-4, connecting the swashplate support to the upper case. (ii) If there are no cracks, within 25 hours TIS, remove all six nuts, P/N MS21042-4, connecting the swashplate support to the upper case. (2) Do not install a nut, P/N MS21042-4, connecting the swashplate support to the upper case of the main transmission on any helicopter.
Affected ADs
This AD defines the unsafe condition as a crack on a nut connecting the main rotor swashplate support to the upper case of the main transmission. This condition could result in failure of the main rotor system and subsequent loss of control of the helicopter.
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