# AD 2001-10-12: Unapproved Parts - Type: Airworthiness directive - Status: Current - Products: General Electric CF700-2C, CF700-2D, CF700-2D-2, CJ610-1, CJ610-4, CJ610-5, CJ610-6, CJ610-8, CJ610-8A and CJ610-9 - Effective: June 7, 2001 - Published: May 23, 2001, 66 FR 28364–28368 - Issued: May 16, 2001 - Issued as: Final rule; request for comments - Supersedes: [AD 2000-01-09](https://openairdocs.org/ad/2000-01-09) - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-12238 - Docket: 99-NE-58-AD - Registered aircraft: 78 may be affected, by airframe or engine model (OpenAirDocs) - Official PDF: https://openairdocs.org/files/sha256/8d/80/8d8029351ca3f77f3e4182c5f7c86451f34dca16d602d2934c424972b9dcce23 (from https://www.govinfo.gov/content/pkg/FR-2001-05-23/pdf/01-12942.pdf) - Federal Register: https://www.federalregister.gov/documents/2001/05/23/01-12942/airworthiness-directives-ge-aircraft-engines-cj610-series-turbojet-and-cf700-turbofan-engines - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/088BB6060FB45AD086256A56005F9E4E.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/2001-10-12 ## Summary This amendment supersedes an existing airworthiness directive (AD) that is applicable to GE Aircraft Engines (GEAE) CJ610 series turbojet and CF700 series turbofan engines that currently requires removal of certain unapproved parts before further flight. This amendment requires removal of additional unapproved parts. This amendment is prompted by the discovery by the FAA of additional unapproved parts not listed in the original AD that have been introduced into the field and might be installed on the affected engines. The actions specified in this AD are intended to prevent the use of unapproved parts which could lead to an uncontained engine failure and damage to the airplane. ## The airworthiness directive Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR-part-39) as follows: 1. The authority citation for part 39 continues to read as follows: ## Rule preamble ### Dates Effective June 7, 2001. Comments for inclusion in the Rules Docket must be received on or before July 23, 2001. ### Addresses Submit comments in triplicate to the Federal Aviation Administration (FAA), New England Region, Office of the Regional Counsel, Attention: Rules Docket No. 99-NE-58-AD, 12 New England Executive Park, Burlington, MA 01803-5299. Comments may also be sent via the Internet using the following address: “9-ane-adcomment@faa.gov”. Comments sent via the Internet must contain the docket number in the subject line. ### For further information contact Kevin Donovan, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803-5299; telephone (781) 238-7743, fax (238) 238-7199. ### SUPPLEMENTARY INFORMATION On January 5, 2000, the FAA issued AD 2000-01-09, Amendment 39-11506 (65 FR 1771) to require removal of certain unapproved parts before further flight. That amendment was prompted by findings that life-limited parts, with inaccurate records, have been introduced into the field and might be installed on the affected engines. That condition, if not corrected, could lead to an uncontained engine failure and damage to the airplane. Since the issuance of that AD, the FAA discovered a compressor rotor during an audit with suspected military markings. The manufacturer confirmed that the marking was an electro-etched Low Cycle Fatigue Cycles (LCFC) marking used strictly on military parts. The original AD, AD 2000-01-09, did not identify this particular compressor rotor or the three additional rotors containing unapproved parts discovered at other locations during subsequent audits. ### FAA's Determination of an Unsafe Condition and Proposed Actions Since an unsafe condition has been identified that is likely to exist or develop on other GE Aircraft Engines (GEAE) CJ610 series turbojet and CF700 series turbofan engines of the same type design, this AD supersedes AD 2000-01-09 to require removal before further flight of the additional unapproved parts not listed in the original AD that have been introduced into the field and might be installed on the affected engines. ### Immediate Adoption of This AD Since a situation exists that requires the immediate adoption of this regulation, it is found that notice and opportunity for prior public comment hereon are impracticable, and that good cause exists for making this amendment effective in less than 30 days. ### Comments Invited Although this action is in the form of a final rule that involves requirements affecting flight safety and, thus, was not preceded by notice and an opportunity for public comment, comments are invited on this rule. Interested persons are invited to comment on this rule by submitting such written data, views, or arguments as they may desire. Communications should identify the Rules Docket number and be submitted in triplicate to the address specified under the caption ADDRESSES. All communications received on or before the closing date for comments will be considered, and this rule may be amended in light of the comments received. Factual information that supports the commenter's ideas and suggestions is extremely helpful in evaluating the effectiveness of the AD action and determining whether additional rulemaking action would be needed. Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the rule that might suggest a need to modify the rule. All comments submitted will be available, both before and after the closing date for comments, in the Rules Docket for examination by interested persons. A report that summarizes each FAA-public contact concerned with the substance of this AD 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 99-NE-58-AD.” The postcard will be date stamped and returned to the commenter. ### Regulatory Impact This final rule does not have federalism implications, as defined in Executive Order 13132, because it would not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. Accordingly, the FAA has not consulted with state authorities prior to publication of this final rule. The FAA has determined that this regulation is an emergency regulation that must be issued immediately to correct an unsafe condition in aircraft, and is not a “significant regulatory action” under Executive Order 12866. It has been determined further that this action involves an emergency regulation under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). If it is determined that this emergency regulation otherwise would be significant under DOT Regulatory Policies and Procedures, a final regulatory evaluation will be prepared and placed in the Rules Docket. A copy of it, if filed, may be obtained from the Rules Docket at the location provided under the caption ADDRESSES. ## Affected data sheets (2) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 1E16](https://openairdocs.org/tcds/1E16): General Electric Company; names 7 of 7 models: CJ610-8A, CJ610-6, CJ610-1, CJ610-5, CJ610-9, CJ610-4, CJ610-8 - [TCDS E7EA](https://openairdocs.org/tcds/E7EA): General Electric Company; names 3 of 3 models: CF700-2D, CF700-2D-2, CF700-2C ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 78 (0 by airframe model, 78 by engine model) - Makers: Dassault/Sud 20, Learjet 19, Gates Lear Jet 16, Gates Learjet 8, Dassault-Breguet 3, Aero Commander 2, Cessna 1, Classic Fighter Industries 1, Dassault Breguet 1, Fouga 1 Models with the most aircraft: - [GE CJ610-SER series](https://openairdocs.org/engine/ge-cj610-ser-series): 31 aircraft (engine model) - [GE CF700 series](https://openairdocs.org/engine/ge-cf700-series): 27 aircraft (engine model) - [GE CJ-610-8A](https://openairdocs.org/engine/ge-cj-610-8a): 9 aircraft (engine model) - [GE CJ610-6](https://openairdocs.org/engine/ge-cj610-6): 6 aircraft (engine model) - [GE CJ-610-4](https://openairdocs.org/engine/ge-cj-610-4): 3 aircraft (engine model) - [GE CJ610-1](https://openairdocs.org/engine/ge-cj610-1): 1 aircraft (engine model) - [GE CJ610-8](https://openairdocs.org/engine/ge-cj610-8): 1 aircraft (engine model) All 7 models: https://openairdocs.org/ad/2001-10-12/models.md Every aircraft: https://openairdocs.org/ad/2001-10-12/aircraft.md ## Related documents - [AD 2000-01-09](https://openairdocs.org/ad/2000-01-09) (historical): General Electric Aircraft Engines CF700-2C, CF700-2D and CF700-2D-2. Effective Feb 11, 2000. Replaced by this AD No proposed rule in this release led to it. Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.