Each document posted on the site includes a link to theCorresponding official PDF file on govinfo.gov. It is not an official legal edition of the FederalRegister, and does not replace the official print version or the officialThe documents posted on this site are XML renditions of published FederalRegister documents. Motor staging valve cfm56-7b specificationscfm56-3 manual engine supplier of.Federal Register. CFM56-3 ENGINE SHOP MANUAL > READ ONLINE cfm56-7b manual motorcfm56-5b. CFM SB CFM56-7B S/B 72-1033, Revision 2, describes procedures for performing a USI of the affected fan blades. Aircraft Engine Height Width Weight.This site displays a prototype of a “Web 2.0” version of the dailyThe FAA reviewed CFM SB CFM56-7B S/B 72-1033, Revision 2, dated July 27, 2018, and Subtask 72-21-01-220-091, of Task 72-21-01-200-001, from the CFM56-7B Engine Shop Manual (ESM), Revision 57, dated January 15, 2018.
Cfm56 7B Engine Series Turbofan Engines
The actions specified by this proposed AD are intended to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane. This proposal would modify the airworthiness limitations section of the manufacturer's manual and an air carrier's approved continuous airworthiness maintenance program to incorporate additional inspection requirements. SUMMARY:The Federal Aviation Administration (FAA) proposes to supersede an existing airworthiness directive (AD), that is applicable to certain CFM International (CFMI) CFM56 series turbofan engines, that currently requires revisions to the Airworthiness Limitations Section of applicable Engine Shop Manuals (ESM's) to include required enhanced inspection of selected critical life-limited parts at each piece-part exposure. ACTION:Notice of proposed rulemaking (NPRM). Until the ACFR grants it official status, the XMLRendition of the daily Federal Register on FederalRegister.gov does notProvide legal notice to the public or judicial notice to the courts.Federal Aviation Administration, DOT. While every effort has been made to ensure thatThe material on FederalRegister.gov is accurately displayed, consistent withThe official SGML-based PDF version on govinfo.gov, those relying on it forLegal research should verify their results against an official edition ofThe Federal Register.
Comments may also be sent via the Internet using the following address: “ Comments sent via the Internet must contain the docket number in the subject line. 98-ANE-38-AD, 12 New England Executive Park, Burlington, MA 01803-5299. ADDRESSES:Submit comments in triplicate to the Federal Aviation Administration (FAA), New England Region, Office of the Regional Counsel, Attention: Rules Docket No.
Availability of NPRM'sAny person may obtain a copy of this NPRM by submitting a request to the FAA, New England Region, Office of the Regional Counsel, Attention: Rules Docket No. A report summarizing each FAA-public contact concerned with the substance of this proposal will be filed in the Rules Docket.Commenters wishing the FAA to acknowledge receipt of their comments submitted in response to this action must submit a self-addressed, stamped postcard on which the following statement is made: “Comments to Docket Number 98-ANE-38-AD.” The postcard will be date stamped and returned to the commenter. All comments submitted will be available, both before and after the closing date for comments, in the Rules Docket for examination by interested persons. The proposals contained in this action may be changed in light of the comments received.Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the proposed rule. All communications received on or before the closing date for comments, specified above, will be considered before taking action on the proposed rule.
Proposed ActionsSince an unsafe condition has been identified that is likely to exist or develop on other products of this same type design, the proposed AD would supersede AD to add additional critical life-limited parts requiring enhanced inspections at piece part opportunity. This proposal would modify the Airworthiness Limitations Section of the applicable ESMs to incorporate additional inspection requirements. The mandatory inspections are needed to identify those critical rotating parts with conditions, which if allowed to continue in service, could result in uncontained failures. Additional Inspection ProceduresSince the issuance of that AD, CFMI has identified additional critical life-limited parts requiring enhanced inspections and has developed additional focused inspection procedures applicable to the High Pressure Turbine (HPT) disk and the HPT front rotating air seal. DiscussionOn June 13, 2000, the FAA issued AD , Amendment 39-11779 ( 65 FR 37031, June 13, 2000), to require revisions to the Airworthiness Limitations Section of the applicable Engine Shop Manuals (ESM's) for CFMI CFM56-2, -2A, -2B, -3, -3B, -3C -5, -5B, -5C, and -7B series turbofan engines by adding additional focused inspection procedures and increasing the applicability of the CFM56 engine models requiring enhanced inspection of selected critical life-limited parts at each piece-part exposure.
Start List of Subjects List of Subjects in 14 CFR Part 39End List of Subjects The Proposed AmendmentAccordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration proposes to amend part 39 of the Federal Aviation Regulations ( 14 CFR part 39) as follows: Start Part PART 39—AIRWORTHINESS DIRECTIVES1. A copy of it may be obtained by contacting the Rules Docket at the location provided under the caption ADDRESSES. A copy of the draft regulatory evaluation prepared for this action is contained in the Rules Docket.
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. 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. 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. Supersedes AD , Amendment 39-11779.Applicability: CFM International (CFMI) CFM56-2, -2A, -2B, -3, -3B, -3C, -5, -5B, -5C, and -7B series turbofan engines, installed on but not limited to McDonnell Douglas DC-8 series, Boeing 737 series, Airbus Industrie A319, A320, A321, and A340 series, as well as Boeing E-3, E-6, and KC-135 (military) series airplanes. Section 39.13 is amended by removing Amendment 39-11779 ( 65 FR 3731, June 13, 2000), and by adding a new airworthiness directive, to read as follows:CFM International: Docket No.
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