AD 98-03-09
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-100 Series | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-200 Series | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-400 Series | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-500 Series | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes |
Unsafe Condition
Defective ailerons, identified by specific serial numbers and correlating part numbers (e.g., BN23 with 65-46454-22), could result in in-flight separation of an aileron from the airplane and consequent reduced controllability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 60 days after the effective date, perform a one-time visual inspection to identify affected ailerons. If found, remove and replace defective ailerons before further flight, and submit a report within 10 days of the inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 days after the effective date of this AD, and prior to further flight for removal and replacement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Boeing Model 737-100, -200, -300, -400, and -500 series airplanes, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Ailerons
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_98-03-09.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 98-03-09 Document Type: AD Final Rules Docket Number: 98-NM-09-AD Subject Heading: Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes Subject: Ailerons Status: Current Citation: (Federal Register: February 02, 1998 (Volume 63, Number 21)) Citation Publish Date: 02/02/1998 Effective Date: 02/17/1998 Make: The Boeing Company Model: 737-100 Series | 737-200 Series | 737-300 Series | 737-400 Series | 737-500 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 (63 FR 5226 NO. 21 02/02/98) Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 98-03-09 CITATION: [Federal Register: February 02, 1998 (Volume 63, Number 21)] PAGE NUMBER: [Page 5226] DOCKET NUMBER: 98-NM-09-AD AMENDMENT: 39-10301 AD NUMBER: 98-03-09 SUBJECT HEADING: Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes ACTION: Final rule; request for comments. SUMMARY: This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 737-100, -200, -300, -400, and -500 series airplanes, that currently requires a one-time inspection to determine if certain ailerons are installed on the airplane. That amendment also requires removing any defective aileron, and replacing it with a new or serviceable aileron. This amendment continues to require those actions and limits the applicability of the rule. This amendment is prompted by additional information that specifies the identification of certain part numbers. The actions specified in this AD are intended to detect and correct defective ailerons, which could result in in-flight separation of an aileron from the airplane and consequent reduced controllability of the airplane. DATES: Effective February 17, 1998. Comments for inclusion in the Rules Docket must be received on or before April 3, 1998. ADDRESSES: Submit comments in triplicate to the Federal Aviation Administration (FAA), Transport Airplane Directorate, ANM-114, Attention: Rules Docket No. 98-NM-09-AD, 1601 Lind Avenue, SW., Renton, Washington 98055-4056. The service information referenced in this AD may be obtained from or examined at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. FOR FURTHER INFORMATION CONTACT: Greg Schneider or Nenita Odesa, Aerospace Engineers, Airframe Branch, ANM-120S, FAA, Transport Airplane Directorate, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2028 or (425) 227-2557; fax (425) 227-1181. SUPPLEMENTARY INFORMATION: On December 9, 1997, the FAA issued AD 97-26-04, amendment 39-10247 (62 FR 65600, December 15, 1997), applicable to all Boeing Model 737-100, -200, -300, -400, and -500 series airplanes. That AD requires a one-time inspection to determine if certain ailerons are installed on the airplane. That AD also requires removing any defective aileron, replacing it with a new or serviceable aileron, and submitting an inspection report to the FAA, if necessary. That action was prompted by reports of failure of the aileron due to an inappropriate repair procedure. The actions specified in that AD are intended to detect and correct defective ailerons, which could result in in-flight separation of an aileron from the airplane and consequent reduced controllability of the airplane. Actions Since Issuance of Previous Rule Since the issuance of that AD, the FAA has received additional information that identifies correlating part numbers for the aileron serial numbers cited in AD 97-26-04. Specification of those correlating part numbers with the aileron serial numbers will enable operators to readily identify certain defective ailerons. Such defective ailerons could result in in-flight separation of an aileron from the airplane and consequent reduced controllability of the airplane. 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, this AD supersedes AD 97-26-04 to continue to require a one- time visual inspection to determine if certain ailerons are installed on the airplane. This AD also continues to require removing any defective aileron, replacing it with a new or serviceable aileron, and submitting an inspection report to the FAA, if necessary. 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. 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 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. 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 Number 98-NM-09-AD." The postcard will be date stamped and returned to the commenter. Regulatory Impact The regulations adopted herein will not have substantial direct effects 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, in accordance with Executive Order 12612, it is determined that this final rule does not have sufficient federalism implications to warrant the preparation of a Federalism Assessment. 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." List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. Adoption of the Amendment 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: PART 39 - AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. Section 39.13 is amended by removing amendment 39-10247 (62 FR 65600, December 15, 1997), and by adding a new airworthiness directive (AD), amendment 39-10301, to read as follows: REGULATORY TEXT: 98-03-09 BOEING: Amendment 39-10301. Docket 98-NM-09-AD. Supersedes AD 97-26-04, Amendment 39-10247. Applicability: All Model 737-100, -200, -300, -400, and -500 series airplanes, certificated in any category. NOTE 1: 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 (d) 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 detect and correct defective ailerons installed on the airplane, which could result in in- flight separation of an aileron from the airplane and consequent reduced controllability of the airplane, accomplish the following: NOTE 2: The requirements of this AD specify and clarify the identification of certain defective ailerons and restate the requirements of AD 97-26-04, amendment 39-10247. As allowed by the phrase, "unless accomplished previously," if those requirements of AD 97-26-04 have already been accomplished, this AD does not require that those actions be repeated. (a) Within 60 days after the effective date of this AD, perform a one-time visual inspection to determine if any aileron having any of the following serial numbers and correlating part numbers is installed on the airplane: Affected Serial Numbers Correlating Part Numbers BN23 65-46454-22 BN49 65-46454-23 BN56 65-46454-24 BN59 65-46454-24A BN167 65-46454-24 BN180 65-46454-23 BN206 65-46454-2 BN236 65-46454-24 162 65-46454-24 237 65-46454-24 (b) If any aileron is found with an affected serial number and correlating part number identified in paragraph (a) of this AD, accomplish paragraphs (b)(1) and (b)(2) of this AD. (1) Prior to further flight, remove the defective aileron, and replace it with a new or serviceable aileron. And (2) Within 10 days after accomplishing the inspection required by paragraph (a) of this AD, submit a report of any findings of ailerons specified in paragraph (a) of this AD to the Manager, FAA, Transport Airplane Directorate, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2028; fax (425) 227-1181. Information collection requirements contained in this regulation have been approved by the Office of Management and Budget (OMB) under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-0056. (c) As of the effective date of this AD, no person shall install on any airplane an aileron having any serial number and correlating part number identified in paragraph (a) of this AD. (d) 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, Seattle ACO. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Seattle ACO. NOTE 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. (e) Special flight permits may be issued in accordance with sections 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. (f) This amendment becomes effective on February 17, 1998. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_98-03-09.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 98-03-09 Document Type: AD Final Rules Docket Number: 98-NM-09-AD Subject Heading: Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes Subject: Ailerons Status: Current Citation: (Federal Register: February 02, 1998 (Volume 63, Number 21)) Citation Publish Date: 02/02/1998 Effective Date: 02/17/1998 Make: The Boeing Company Model: 737-100 Series | 737-200 Series | 737-300 Series | 737-400 Series | 737-500 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 (63 FR 5226 NO. 21 02/02/98) Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 98-03-09 CITATION: [Federal Register: February 02, 1998 (Volume 63, Number 21)] PAGE NUMBER: [Page 5226] DOCKET NUMBER: 98-NM-09-AD AMENDMENT: 39-10301 AD NUMBER: 98-03-09 SUBJECT HEADING: Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes ACTION: Final rule; request for comments. SUMMARY: This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 737-100, -200, -300, -400, and -500 series airplanes, that currently requires a one-time inspection to determine if certain ailerons are installed on the airplane. That amendment also requires removing any defective aileron, and replacing it with a new or serviceable aileron. This amendment continues to require those actions and limits the applicability of the rule. This amendment is prompted by additional information that specifies the identification of certain part numbers. The actions specified in this AD are intended to detect and correct defective ailerons, which could result in in-flight separation of an aileron from the airplane and consequent reduced controllability of the airplane. DATES: Effective February 17, 1998. Comments for inclusion in the Rules Docket must be received on or before April 3, 1998. ADDRESSES: Submit comments in triplicate to the Federal Aviation Administration (FAA), Transport Airplane Directorate, ANM-114, Attention: Rules Docket No. 98-NM-09-AD, 1601 Lind Avenue, SW., Renton, Washington 98055-4056. The service information referenced in this AD may be obtained from or examined at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. FOR FURTHER INFORMATION CONTACT: Greg Schneider or Nenita Odesa, Aerospace Engineers, Airframe Branch, ANM-120S, FAA, Transport Airplane Directorate, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2028 or (425) 227-2557; fax (425) 227-1181. SUPPLEMENTARY INFORMATION: On December 9, 1997, the FAA issued AD 97-26-04, amendment 39-10247 (62 FR 65600, December 15, 1997), applicable to all Boeing Model 737-100, -200, -300, -400, and -500 series airplanes. That AD requires a one-time inspection to determine if certain ailerons are installed on the airplane. That AD also requires removing any defective aileron, replacing it with a new or serviceable aileron, and submitting an inspection report to the FAA, if necessary. That action was prompted by reports of failure of the aileron due to an inappropriate repair procedure. The actions specified in that AD are intended to detect and correct defective ailerons, which could result in in-flight separation of an aileron from the airplane and consequent reduced controllability of the airplane. Actions Since Issuance of Previous Rule Since the issuance of that AD, the FAA has received additional information that identifies correlating part numbers for the aileron serial numbers cited in AD 97-26-04. Specification of those correlating part numbers with the aileron serial numbers will enable operators to readily identify certain defective ailerons. Such defective ailerons could result in in-flight separation of an aileron from the airplane and consequent reduced controllability of the airplane. 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, this AD supersedes AD 97-26-04 to continue to require a one- time visual inspection to determine if certain ailerons are installed on the airplane. This AD also continues to require removing any defective aileron, replacing it with a new or serviceable aileron, and submitting an inspection report to the FAA, if necessary. 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. 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 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. 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 Number 98-NM-09-AD." The postcard will be date stamped and returned to the commenter. Regulatory Impact The regulations adopted herein will not have substantial direct effects 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, in accordance with Executive Order 12612, it is determined that this final rule does not have sufficient federalism implications to warrant the preparation of a Federalism Assessment. 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." List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. Adoption of the Amendment 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: PART 39 - AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. Section 39.13 is amended by removing amendment 39-10247 (62 FR 65600, December 15, 1997), and by adding a new airworthiness directive (AD), amendment 39-10301, to read as follows: REGULATORY TEXT: 98-03-09 BOEING: Amendment 39-10301. Docket 98-NM-09-AD. Supersedes AD 97-26-04, Amendment 39-10247. Applicability: All Model 737-100, -200, -300, -400, and -500 series airplanes, certificated in any category. NOTE 1: 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 (d) 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 detect and correct defective ailerons installed on the airplane, which could result in in- flight separation of an aileron from the airplane and consequent reduced controllability of the airplane, accomplish the following: NOTE 2: The requirements of this AD specify and clarify the identification of certain defective ailerons and restate the requirements of AD 97-26-04, amendment 39-10247. As allowed by the phrase, "unless accomplished previously," if those requirements of AD 97-26-04 have already been accomplished, this AD does not require that those actions be repeated. (a) Within 60 days after the effective date of this AD, perform a one-time visual inspection to determine if any aileron having any of the following serial numbers and correlating part numbers is installed on the airplane: Affected Serial Numbers Correlating Part Numbers BN23 65-46454-22 BN49 65-46454-23 BN56 65-46454-24 BN59 65-46454-24A BN167 65-46454-24 BN180 65-46454-23 BN206 65-46454-2 BN236 65-46454-24 162 65-46454-24 237 65-46454-24 (b) If any aileron is found with an affected serial number and correlating part number identified in paragraph (a) of this AD, accomplish paragraphs (b)(1) and (b)(2) of this AD. (1) Prior to further flight, remove the defective aileron, and replace it with a new or serviceable aileron. And (2) Within 10 days after accomplishing the inspection required by paragraph (a) of this AD, submit a report of any findings of ailerons specified in paragraph (a) of this AD to the Manager, FAA, Transport Airplane Directorate, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2028; fax (425) 227-1181. Information collection requirements contained in this regulation have been approved by the Office of Management and Budget (OMB) under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-0056. (c) As of the effective date of this AD, no person shall install on any airplane an aileron having any serial number and correlating part number identified in paragraph (a) of this AD. (d) 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, Seattle ACO. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Seattle ACO. NOTE 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. (e) Special flight permits may be issued in accordance with sections 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. (f) This amendment becomes effective on February 17, 1998. FOOTER:
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