Adoption of the Amendment
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0 1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD):
2013-20-01 Agusta S.p.A. (Type Certificate Currently Held By Agustawestland S.p.A.) (Agusta): Amendment 39-17607; Docket No. FAA- 2013-0518; Directorate Identifier 2009-SW-021-AD.
(a) Applicability
This AD applies to Agusta Model A109A, A109AII, and A109C helicopters with a third stage turbine wheel, part number 23065833, installed, certificated in any category.
(b) Unsafe Condition
This AD defines the unsafe condition as a third stage turbine vibration, which could result in turbine failure, engine power loss, and subsequent loss of control of the helicopter.
(c) Effective Date
This AD becomes effective December 5, 2013.
(d) Compliance
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
(e) Required Actions
Within 30 days:
(1) For Model A109A helicopters, revise the Power Plant Limitations section, page 1-7, of the Model A109A Rotorcraft Flight Manual (RFM) by inserting page 5 of Agusta Bollettino Tecnico No. 109-129, dated February 16, 2009 (BT 109-129).
(2) For Model A109AII helicopters, revise the Power Plant Limitations section, page 1-6, of the Model A109AII RFM by inserting page 6 of BT 109-129.
(3) For Model A109C helicopters, revise the Power Plant and Transmission Limitations section, page 1-8, of the Model A109C RFM by inserting page 7 of BT 109-129.
(4) Install a placard on the instrument panel adjacent to the Engine and Rotor RPM Power Turbine (N2)Indicator that states: MIN. CONT. 97% N2--MIN. TRANS. 95% N2.
(f) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Chinh Vuong, Aviation Safety Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email
[email protected].
(2) For operations conducted under a 14 CFR part 119 operating certificate or under
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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.
(g) Additional Information
(1) The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2009-0037-E, dated February 19, 2009. You may view the EASA AD on theinternet in the AD Docket at http://www.regulations.gov.
(h) Subject
Joint Aircraft Service Component (JASC) Code: 7250: Turbine Section.
(i) Material Incorporated by Reference
(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise.
(i) Agusta Bollettino Tecnico No. 109-129, dated February 16, 2009.
(ii) Reserved.
(3) For Agusta service information identified in this AD, contact Agusta Westland, Customer Support & Services, Via Per Tornavento 15, 21019 Somma Lombardo (VA) Italy, ATTN: Giovanni Cecchelli; telephone 39-0331-711133; fax 39 0331 711180; or at http://www.agustawestland.com/technical-bullettins.
(4) You may review this service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137.
(5) You may also view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
