Airworthiness directives › 2001-08-15
AD 2001-08-15 Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company) AE 3007 Series Turbofan Engines
Models named: EMB-145, EMB-145ER, EMB-145MR, EMB-145LR, EMB-135ER, EMB-135LR. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This airworthiness directive (AD) is applicable to Rolls-Royce Corporation (formerly Allison Engine Company) AE 3007A, AE 3007A1/1, AE 3007A1/2, AE 3007A1, AE 3007A1/3, AE 3007A1P, and AE 3007A3 turbofan engines. These engines are installed on, but not limited to, Embraer Model EMB-145, EMB-145ER, EMB-145MR, EMB-145LR, EMB-135ER and EMB-135LR airplanes. Note 1: This AD applies to each engine identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For engines that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (c) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
Compliance
Compliance with this AD is required as indicated, unless already done. Compliance Compliance with this AD is required as indicated, unless already done. To detect the rapid failure of the No. 1 bearing, which could result in smoke in the cabin and an uncommanded in-flight engine shutdown, do the following: Inspection for Bearing Material Contamination of the Oil System (a) Inspect for bearing material contamination of the oil system in accordance with 2.A.(1) through 2.A.(2) of the Accomplishment Instructions of Rolls-Royce alert service bulletin (ASB) No. AE 3007A-A-79-027, dated August 17, 2000, as follows: (1) Do an initial inspection within 30 flight hours, or three flight days after the effective date of this AD, whichever occurs first. (2) Thereafter, inspect for every 30 flight hours, or every three flight days, whichever occurs first. Terminating Action (b) Incorporation of Embraer Service Bulletin 145-79-0001, dated April 24, 1998, is considered terminating action for the inspections required by paragraphs (a)(1) and (a)(2) of this AD. Alternative Methods of Compliance (c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Chicago Aircraft Certification Office (ACO). Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Chicago ACO. Note 2: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Chicago ACO. Special Flight Permits (d) Special flight permits may be issued in accordance with §§ 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the aircraft to a location where the requirements of this AD can be accomplished. (e) The inspection shall be done in accordance with Rolls-Royce alert service bulletin No. AE 3007A-A-79-027, dated August 17, 2000. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Allison Engine Company, Inc., P.O. Box 420, Indianapolis, IN 46206 USA, Phone: 317-230-6400; Fax: 317-230-4243. Copies may be inspected at the FAA, New England Region, Office of the Regional Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC. (f) This amendment becomes effective on May 14, 2001. Issued in Burlington, Massachusetts, on April 16, 2001. Francis A. Favara, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 01-10022 Filed 4-26-01; 8:45 am] BILLING CODE 4910-13-U
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1