2018-18-14: Engine Controls

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): 2018-18-14 Rolls-Royce Deutschland Ltd & Co KG (Type Certificate previously held by Rolls-Royce Deutschland GmbH, formerly BMW Rolls- Royce GmbH): Amendment 39-19393; Docket No. FAA-2017-1050; Product Identifier 2017-NE-39-AD. (a) Effective Date This AD is effective October 12, 2018. [[Page 45337]] (b) Affected ADs None. (c) Applicability This AD applies to: (1) Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-710A2-20 turbofan engines with any electronic engine controller (EEC) firebox assembly installed, with any of the following component part numbers (P/Ns): FW42888, FW42886, FW38590, FW38591, or FW58255. (2) RRD BR700-710C4-11 turbofan engines with any EEC firebox assembly installed, with any of the following component P/Ns: FW38504, FW38503, FW38590, FW38591, or FW58255. (d) Subject Joint Aircraft System Component (JASC) Code 7600, Engine Controls. (e) Unsafe Condition This AD was prompted by reports of deterioration of the intumescent heat resistant paint system on the EEC firebox assembly that was found to be beyond acceptable limits. We are issuing this AD to prevent failure of the EEC. The unsafe condition, if not addressed, could result in failure of the EEC, loss of engine thrust control, and reduced control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Within 28 months after the effective date of this AD, perform the following: (i) For RRDBR700-710A2-20 engines, remove from service the EEC firebox assembly components with P/N FW42888, FW42886, FW38590, FW38591, and FW58255, and replace with parts eligible for installation. (ii) For RRD BR700-710C4-11 engines, remove from service the EEC firebox assembly components with P/N FW38504, FW38503, FW38590, FW38591, and FW58255, and replace with parts eligible for installation. (2) Reserved. (h) Alternative Methods of Compliance (AMOCs) (1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (i)(1) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov. (2) Before using any approved AMOC, notifyyour appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (i) Related Information (1) For more information about this AD, contact Barbara Caufield, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781-238-7146; fax: 781-238-7199; email: barbara.caufield@faa.gov. (2) Refer to EASA AD No. 2017-0198, dated October 10, 2017, for more information. You may examine the EASA AD in the AD docket on the internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA-2017-1050. (j) Material Incorporated by Reference None.