AD 92-09-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes |
| aircraft | The Boeing Company | DC-9-87 (MD-87) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes |
| aircraft | The Boeing Company | MD-88 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes |
Unsafe Condition
Loss of main landing gear braking effectiveness due to brakes exceeding maximum wear limits specified in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect brakes with specified part numbers for wear within 180 days after May 22, 1992. Replace worn brakes exceeding limits before further flight. Incorporate the maximum wear limits into the FAA-approved maintenance inspection program within 180 days after May 22, 1992.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 180 days after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MCDONNELL DOUGLAS DC-9-80 series and MD-88 airplanes equipped with brake part numbers listed in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Brake Replacement
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_92-09-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 92-09-03 Document Type: AD Final Rules Docket Number: 91-NM-239-AD Subject Heading: Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes Subject: Brake Replacement Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/22/1992 Make: The Boeing Company Model: DC-9-81 (MD-81) | DC-9-82 (MD-82) | DC-9-83 (MD-83) | DC-9-87 (MD-87) | MD-88 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 92-09-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-239-AD AMENDMENT: 39-8228 AD NUMBER: 92-09-03 SUBJECT HEADING: Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes ACTION: SUMMARY: DATES: Effective May 22, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 92-09-03 MCDONNELL DOUGLAS: Amendment 39-8228. Docket No. 91-NM-239-AD. Applicability: Model DC-9-80 series and MD-88 airplanes, equipped with brake part numbers identified in paragraph (a) 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 the effective date of this AD, inspect the brakes having brake part numbers specified, below, for wear. Any brake worn more than the maximum wear limit specified below must be replaced, prior to further flight, with a brake within this limit. Douglas Brake Part Number Maximum Wear Limit (inches) For airplanes with an approved Flight Manual MGTOW of 149,500 lb: 2608892-1 1.20 5004321-3/-4/-5 all Trapezoid 0.65 5004321-6 Bullnose 0.70 " -6 Trapezoid 0.75 " -10 Bullnose 0.70 " -11 Trapezoid (Standard) 1.00 " -11 Trapezoid (Rebalanced) 1.20 " -12 Trapezoid 0.70 5007898 Trapezoid 0.75 5007898-1 Trapezoid 0.80 For airplanes with an approved Flight Manual MGTOW of 160,000 lb: 2608892-1 0.70 5007898 Bullnose 0.45 5007898-1 Trapezoid 0.50 (b) Within 180 days after the effective date of this AD, incorporate the maximum brake wear limits specified in paragraph (a) of this AD, into the FAA-approved maintenance inspection program. (c) 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, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Los Angeles ACO. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (e) This amendment becomes effective on May 22, 1992. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_92-09-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 92-09-03 Document Type: AD Final Rules Docket Number: 91-NM-239-AD Subject Heading: Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes Subject: Brake Replacement Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/22/1992 Make: The Boeing Company Model: DC-9-81 (MD-81) | DC-9-82 (MD-82) | DC-9-83 (MD-83) | DC-9-87 (MD-87) | MD-88 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: 92-09-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-239-AD AMENDMENT: 39-8228 AD NUMBER: 92-09-03 SUBJECT HEADING: Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series and MD-88 Airplanes ACTION: SUMMARY: DATES: Effective May 22, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 92-09-03 MCDONNELL DOUGLAS: Amendment 39-8228. Docket No. 91-NM-239-AD. Applicability: Model DC-9-80 series and MD-88 airplanes, equipped with brake part numbers identified in paragraph (a) 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 the effective date of this AD, inspect the brakes having brake part numbers specified, below, for wear. Any brake worn more than the maximum wear limit specified below must be replaced, prior to further flight, with a brake within this limit. Douglas Brake Part Number Maximum Wear Limit (inches) For airplanes with an approved Flight Manual MGTOW of 149,500 lb: 2608892-1 1.20 5004321-3/-4/-5 all Trapezoid 0.65 5004321-6 Bullnose 0.70 " -6 Trapezoid 0.75 " -10 Bullnose 0.70 " -11 Trapezoid (Standard) 1.00 " -11 Trapezoid (Rebalanced) 1.20 " -12 Trapezoid 0.70 5007898 Trapezoid 0.75 5007898-1 Trapezoid 0.80 For airplanes with an approved Flight Manual MGTOW of 160,000 lb: 2608892-1 0.70 5007898 Bullnose 0.45 5007898-1 Trapezoid 0.50 (b) Within 180 days after the effective date of this AD, incorporate the maximum brake wear limits specified in paragraph (a) of this AD, into the FAA-approved maintenance inspection program. (c) 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, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Los Angeles ACO. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (e) This amendment becomes effective on May 22, 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.
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