Federal Aviation Administration, DOT.
Final rule; request for comments.Start Printed Page 40884
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Israel Aircraft Industries, Ltd., Model 1125 Westwind Astra series airplanes. This action requires replacing certain fuel-immersed electrical harnesses in the fuel tank with modified harnesses. This action is necessary to prevent electrical arcing in the area of fuel vapors, which could result in a potential explosion and/or fire in the fuel tank. This action is intended to address the identified unsafe condition.
Effective August 21, 2001.
The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of September 5, 2001.
Comments for inclusion in the Rules Docket must be received on or before September 5, 2001.
Submit comments in triplicate to the Federal Aviation Administration (FAA), Transport Airplane Directorate, ANM-114, Attention: Rules Docket No. 2001-NM-202-AD, 1601 Lind Avenue, SW., Renton, Washington 98055-4056. Comments may be inspected at this location between 9 a.m. and 3 p.m., Monday through Friday, except Federal holidays. Comments may be submitted via fax to (425) 227-1232. Comments may also be sent via the Internet using the following address: email@example.com. Comments sent via fax or the Internet must contain “Docket No. 2001-NM-202-AD” in the subject line and need not be submitted in triplicate. Comments sent via the Internet as attached electronic files must be formatted in Microsoft Word 97 for Windows or ASCII text.
The service information referenced in this AD may be obtained from Galaxy Aerospace Corporation, One Galaxy Way, Fort Worth Alliance Airport, Fort Worth, Texas 76177. This information may be examined at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.Start Further Info
FOR FURTHER INFORMATION CONTACT:
Tim Dulin, Aerospace Engineer, International Branch, ANM-116, FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2141; fax (425) 227-1149.End Further Info End Preamble Start Supplemental Information
The Civil Aviation Administration of Israel (CAAI), which is the airworthiness authority for Israel, recently notified the FAA that an unsafe condition may exist on certain Israel Aircraft Industries, Ltd., Model 1125 Westwind Astra series airplanes. The CAAI advises that certain fuel-immersed electrical harnesses are made with Kapton insulation, which can crack over time. Cracked Kapton wire insulation could result in electrical arcing in the area of fuel vapors and consequent explosion and/or fire in the fuel tank.
Explanation of Relevant Service Information
Israel Aircraft Industries has issued Astra Alert Service Bulletin 1125-28A-230, dated March 13, 2001. The alert service bulletin describes procedures for removing the left and right transfer valve/jettison valve electrical harnesses and the forward and aft interconnect valve electrical harnesses, and replacing them with modified parts. The replacement harnesses are sealed and will therefore have no direct contact with fuel. Accomplishment of the actions specified in the alert service bulletin is intended to adequately address the identified unsafe condition. The CAAI classified this alert service bulletin as mandatory and issued Israeli airworthiness directive 28-01-02-08, dated May 30, 2001, to ensure the continued airworthiness of these airplanes in Israel.
This airplane model is manufactured in Israel and is type certificated for operation in the United States under the provisions of § 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the applicable bilateral airworthiness agreement. Pursuant to this bilateral airworthiness agreement, the CAAI has kept the FAA informed of the situation described above. The FAA has examined the findings of the CAAI, reviewed all available information, and determined that AD action is necessary for products of this type design that are certificated for operation in the United States.
Explanation of Requirements of Rule
Since an unsafe condition has been identified that is likely to exist or develop on other airplanes of the same type design registered in the United States, this AD is being issued to prevent electrical arcing in the area of fuel vapors, which could result in potential explosion and/or fire in the fuel tank. This AD requires accomplishment of the actions specified in the alert service bulletin described previously.
Determination of Rule's Effective Date
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.
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 shall 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.
Submit comments using the following format:
- Organize comments issue-by-issue. For example, discuss a request to change the compliance time and a request to change the service bulletin reference as two separate issues.
- For each issue, state what specific change to the AD is being requested.
- Include justification (e.g., reasons or data) for each request.
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 rule must submit a self-addressed, stamped postcard on which the following statement is made: “Comments to Docket 2001-NM-202-AD.” The postcard will be date-stamped and returned to the commenter.Start Printed Page 40885
The regulations adopted herein will 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. Therefore, it is determined that this final rule does not have federalism implications under Executive Order 13132.
The FAA has determined that this regulation is an emergency regulation that must be issued immediately to correct an unsafe condition in aircraft, and that it 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.Start List of Subjects
List of Subjects in 14 CFR Part 39End List of Subjects
Adoption of the AmendmentStart Amendment Part
Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (End Amendment Part Start Part
PART 39—AIRWORTHINESS DIRECTIVESEnd Part Start Amendment Part
1. The authority citation for part 39 continues to read as follows:End Amendment Part
2. Section 39.13 is amended by adding the following new airworthiness directive:End Amendment Part
2001-15-27 Israel Aircraft Industries, Ltd.: Amendment 39-12362. Docket 2001-NM-202-AD.
Applicability: Model 1125 Westwind Astra series airplanes, certificated in any category, serial numbers 004 through 024 inclusive.
This AD applies to each airplane 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 airplanes 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: Required as indicated, unless accomplished previously.
To prevent electrical arcing in the area of fuel vapors, which could result in a potential explosion and/or fire in the fuel tank, accomplish the following:
(a) Within 150 flight hours after the effective date of this AD: Remove the left and right transfer valve/jettison valve electrical harnesses and the forward and aft interconnect valve electrical harnesses, and replace them with modified parts. Perform the actions in accordance with Astra (Israel Aircraft Industries) Alert Service Bulletin 1125-28A-230, dated March 13, 2001.
(b) As of the effective date of this AD, no person may install on any airplane any part listed in the following table:
|(1) Transfer valve/jettison valve electrical harness||25W812030-501 (left wing) or 25W812040-501 (right wing)|
|(2) Forward interconnect valve electrical harness||25W813150-503|
|(3) Aft interconnect valve electrical harness||25W813160-501|
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, International Branch, ANM-116, Transport Airplane Directorate, FAA. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, International Branch, ANM-116.
Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116.
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 airplane to a location where the requirements of this AD can be accomplished.
Incorporation by Reference
(e) The actions shall be done in accordance with Astra (Israel Aircraft Industries) Alert Service Bulletin 1125-28A-230, dated March 13, 2001. 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 Galaxy Aerospace Corporation, One Galaxy Way, Fort Worth Alliance Airport, Fort Worth, Texas 76177. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
The subject of this AD is addressed in Israeli airworthiness directive 28-01-02-08, dated May 30, 2001.
(f) This amendment becomes effective on August 21, 2001.Start Signature
Issued in Renton, Washington, on July 26, 2001.
Vi L. Lipski,
Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 01-19256 Filed 8-3-01; 8:45 am]
BILLING CODE 4910-13-P