AD 92-17-04
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 757-200 Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200CB Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200PF Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-300 Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
Unsafe Condition
Loss of main landing gear braking effectiveness due to excessive brake wear beyond specified limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Incorporate maximum brake wear limits into the FAA-approved maintenance inspection program within 180 days after November 12, 1991. For BFGoodrich brake P/N 2-1510, extend maximum allowable wear to 2.2 inches if incorporated into the program. For BFGoodrich brake P/Ns 2-1457, 2-1457-1, and 2-1457-2, accomplish procedures in BFGoodrich Service Bulletin 2-1457-32-13 or Revision 1, and incorporate figures into the maintenance program within 180 days after the AD's effective date. Replace brakes worn beyond limits before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 180 days after November 12, 1991 (for paragraphs (a) and (b)) and within 180 days after the AD's effective date (September 28, 1992) (for paragraph (c)).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series airplanes equipped with specified brake part numbers (Dunlop AHA 1301, AHA 1637, AHA 1676, AHA 1693, AHA 1884; BFGoodrich 2-1510, 2-1457, 2-1457-1, 2-1457-2).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Main Landing Gear
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_92-17-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 92-17-04 Document Type: AD Final Rules Docket Number: 91-NM-235-AD Subject Heading: Airworthiness Directives; BOEING Model 757 Series Airplanes Subject: Main Landing Gear Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/28/1992 Make: The Boeing Company Model: 757-200 Series | 757-200CB Series | 757-200PF Series | 757-300 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 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 92-17-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-235-AD AMENDMENT: 39-8333 AD NUMBER: 92-17-04 SUBJECT HEADING: Airworthiness Directives; BOEING Model 757 Series Airplanes ACTION: SUMMARY: DATES: Effective September 28, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 92-17-04 BOEING: Amendment 39-8333. Docket No. 91-NM-235-AD. Supersedes AD 91-18-09, Amendment 39-8012. Applicability: Model 757 series airplanes, equipped with brake part numbers (P/N) identified in paragraphs (a) and (c) of this AD, certificated in any category. Compliance required as indicated, unless accomplished previously. To prevent loss of main landing gear braking effectiveness, accomplish the following: (a) Within 180 days after November 12, 1991 (the effective date of Amendment 39-8012, AD 91-18-09), incorporate the maximum brake wear limits, shown below, into the FAA-approved maintenance inspection program. Brake Mfr. Brake P/N Boeing P/N Max. Wear Limit Dunlop AHA 1301 S160N020-1 2.46 inches Dunlop AHA 1637 S160N020-5 2.46 inches Dunlop AHA 1676 S160N020-7 2.46 inches Dunlop AHA 1693 S160N020-8 2.46 inches Dunlop AHA 1884 S160N020-14 2.80 inches BFGoodrich 2-1510 S160N020-11 1.70 inches (b) For BFGoodrich brake P/N 2-1510 (Boeing P/N S160N020-11), in lieu of the limit specified in paragraph (a) of this AD, the maximum allowable brake wear may be extended to 2.2 inches when it is placed into the FAA-approved maintenance inspection program. (c) Within 180 days after the effective date of this AD, accomplish the following: (1) For airplanes equipped with BFGoodrich Brake P/N's 2-1457 and 2-1457-1, (Boeing P/N S160N010-43 AND S160N010-45): Accomplish the procedures specified in Section 2.B.(1) of BFGoodrich Service Bulletin 2-1457-32-13, dated January 30, 1991, or Revision 1, dated December 16, 1991 (issued February 28, 1991). Brakes found worn more than the 1.4-inch allowable brake wear must be removed and replaced, prior to further flight, with either a brake built in accordance with Section 2.B.(1)c. of the service bulletin, or a brake with more than 1.4 inches of allowable wear remaining. (2) For airplanes equipped with BFGoodrich Brake P/N's 2-1457, 2-1457-1, and 2-1457-2, (Boeing P/N S160N010-43, S160N010-45, and S160N010-46): Incorporate either Figure 1 and/or Figure 2 of Section 2.B.(1)c. of BFGoodrich Service Bulletin 2-1457-32-13, dated January 30, 1991, or Revision 1, dated December 16, 1991 (issued February 28, 1991), into the FAA-approved maintenance inspection program. (d) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle ACO. NOTE: 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 FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. (f) The procedures relative to BFGoodrich Brake P/N's 2-1457 and 2-1457-1, and 2-1457-2 shall be done in accordance with BFGoodrich Service Bulletin 2-1457-32-13, dated January 30, 1991; or BFGoodrich Service Bulletin 2-1457-32-13, Revision 1, dated December 16, 1991 (issued February 28, 1991). 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 Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124; and BFGoodrich Aerospace, Aircraft Wheels and Brakes, P.O. Box 340, Troy, Ohio 45373. 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., 7th Floor, Suite 700, Washington, DC. (g) This amendment becomes effective on September 28, 1992. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_92-17-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 92-17-04 Document Type: AD Final Rules Docket Number: 91-NM-235-AD Subject Heading: Airworthiness Directives; BOEING Model 757 Series Airplanes Subject: Main Landing Gear Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/28/1992 Make: The Boeing Company Model: 757-200 Series | 757-200CB Series | 757-200PF Series | 757-300 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 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 92-17-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-235-AD AMENDMENT: 39-8333 AD NUMBER: 92-17-04 SUBJECT HEADING: Airworthiness Directives; BOEING Model 757 Series Airplanes ACTION: SUMMARY: DATES: Effective September 28, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 92-17-04 BOEING: Amendment 39-8333. Docket No. 91-NM-235-AD. Supersedes AD 91-18-09, Amendment 39-8012. Applicability: Model 757 series airplanes, equipped with brake part numbers (P/N) identified in paragraphs (a) and (c) of this AD, certificated in any category. Compliance required as indicated, unless accomplished previously. To prevent loss of main landing gear braking effectiveness, accomplish the following: (a) Within 180 days after November 12, 1991 (the effective date of Amendment 39-8012, AD 91-18-09), incorporate the maximum brake wear limits, shown below, into the FAA-approved maintenance inspection program. Brake Mfr. Brake P/N Boeing P/N Max. Wear Limit Dunlop AHA 1301 S160N020-1 2.46 inches Dunlop AHA 1637 S160N020-5 2.46 inches Dunlop AHA 1676 S160N020-7 2.46 inches Dunlop AHA 1693 S160N020-8 2.46 inches Dunlop AHA 1884 S160N020-14 2.80 inches BFGoodrich 2-1510 S160N020-11 1.70 inches (b) For BFGoodrich brake P/N 2-1510 (Boeing P/N S160N020-11), in lieu of the limit specified in paragraph (a) of this AD, the maximum allowable brake wear may be extended to 2.2 inches when it is placed into the FAA-approved maintenance inspection program. (c) Within 180 days after the effective date of this AD, accomplish the following: (1) For airplanes equipped with BFGoodrich Brake P/N's 2-1457 and 2-1457-1, (Boeing P/N S160N010-43 AND S160N010-45): Accomplish the procedures specified in Section 2.B.(1) of BFGoodrich Service Bulletin 2-1457-32-13, dated January 30, 1991, or Revision 1, dated December 16, 1991 (issued February 28, 1991). Brakes found worn more than the 1.4-inch allowable brake wear must be removed and replaced, prior to further flight, with either a brake built in accordance with Section 2.B.(1)c. of the service bulletin, or a brake with more than 1.4 inches of allowable wear remaining. (2) For airplanes equipped with BFGoodrich Brake P/N's 2-1457, 2-1457-1, and 2-1457-2, (Boeing P/N S160N010-43, S160N010-45, and S160N010-46): Incorporate either Figure 1 and/or Figure 2 of Section 2.B.(1)c. of BFGoodrich Service Bulletin 2-1457-32-13, dated January 30, 1991, or Revision 1, dated December 16, 1991 (issued February 28, 1991), into the FAA-approved maintenance inspection program. (d) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle ACO. NOTE: 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 FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. (f) The procedures relative to BFGoodrich Brake P/N's 2-1457 and 2-1457-1, and 2-1457-2 shall be done in accordance with BFGoodrich Service Bulletin 2-1457-32-13, dated January 30, 1991; or BFGoodrich Service Bulletin 2-1457-32-13, Revision 1, dated December 16, 1991 (issued February 28, 1991). 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 Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124; and BFGoodrich Aerospace, Aircraft Wheels and Brakes, P.O. Box 340, Troy, Ohio 45373. 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., 7th Floor, Suite 700, Washington, DC. (g) This amendment becomes effective on September 28, 1992. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2026-04-06
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: Cracks in the inspar outer lower wing skin area near access panel 543BB, specifically in Aviation Partners Boeing machined skin panels installed during winglet modification, could lead to reduced s...
2026-01-05
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: The potential for cracking on the right- or left-wing lower stringer L-8 or L-6 vertical web flange at a fastener common to the reinforcement strap.
2025-23-03 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: Precoolers failed due to a wear-out condition, combined with latently failed overheat detection thermal switches, leading to prolonged high temperature heat exposure on the strut, which could resul...
2025-20-14 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: uncommanded movement of the Captain's and First Officer's seats, which could lead to reduced controllability of the airplane.