AD 90-09-01

final rule

Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes

AD Number
90-09-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
89-NM-239-AD
FR Citation
This information is not available.
Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company DC-9-81 (MD-81) Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes
aircraft The Boeing Company DC-9-82 (MD-82) Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes
aircraft The Boeing Company DC-9-83 (MD-83) Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes
aircraft The Boeing Company DC-9-87 (MD-87) Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes
aircraft The Boeing Company MD-88 Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes

Unsafe Condition

The generator power feeder cable installations at the firewall receptacles may have arcing, burning, or chafing, which could create a potential fire ignition source.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Visually inspect all generator power feeder cable installations at the firewall receptacles for evidence of arcing, burning, or chafing. Replace damaged feeder cables before further flight. Modify each generator power feeder firewall connector installation per McDonnell Douglas MD-80 Alert Service Bulletin A24-113 dated October 30, 1989.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within 12 months after the effective date of this airworthiness directive (AD), unless previously accomplished

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

McDonnell Douglas Model DC-9-81, -82, -83, -87, and MD-88 airplanes, Fuselage Numbers 909 through 1619

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Generator Connector

Applicability Source Text

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AD Final Rules - DRS_90-09-01.html
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AD Number:
90-09-01
Document Type:
AD Final Rules
Docket Number:
89-NM-239-AD
Subject Heading:
Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes
Subject:
Generator Connector
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/29/1990
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: 90-09-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   89-NM-239-AD

AMENDMENT:   39-6580

AD NUMBER:   90-09-01

SUBJECT HEADING:   Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective May 29, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
90-09-01 MCDONNELL DOUGLAS: Amendment 39-6580. Docket No. 89-NM-239-AD.

Applicability: McDonnell Douglas Model DC-9-81, -82, -83, and -87 series and Model MD-88 airplanes, Fuselage Numbers 909 through 1619, certificated in any category.

Compliance: Required within 12 months after the effective date of this airworthiness directive (AD), unless previously accomplished.

To eliminate a potential fire ignition source from the generator power feeder cable installations, accomplish the following:

A. Visually inspect all generator power feeder cable installations at the firewall receptacles for evidence of arcing, burning, or chafing. If damage is found, prior to further flight, replace the damaged feeder cable.

B. Modify each generator power feeder firewall connector installation in accordance with the Accomplishment Instructions of McDonnell Douglas MD-80 Alert Service Bulletin A24-113, dated October 30, 1989.

C. An alternate means 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, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Avionics Inspector (PAI), who will either concur or comment and then send it to the Manager, Los Angeles Aircraft Certification Office.

D. 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.

All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Business Unit Manager, Technical Publications, C1-HCW (54-60). This document may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California.

This amendment (39-6580, AD 90-09-01) becomes effective on May 29, 1990.


FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_90-09-01.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
90-09-01
Document Type:
AD Final Rules
Docket Number:
89-NM-239-AD
Subject Heading:
Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes
Subject:
Generator Connector
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/29/1990
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: 90-09-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   89-NM-239-AD

AMENDMENT:   39-6580

AD NUMBER:   90-09-01

SUBJECT HEADING:   Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83, -87 and MD-88 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective May 29, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
90-09-01 MCDONNELL DOUGLAS: Amendment 39-6580. Docket No. 89-NM-239-AD.

Applicability: McDonnell Douglas Model DC-9-81, -82, -83, and -87 series and Model MD-88 airplanes, Fuselage Numbers 909 through 1619, certificated in any category.

Compliance: Required within 12 months after the effective date of this airworthiness directive (AD), unless previously accomplished.

To eliminate a potential fire ignition source from the generator power feeder cable installations, accomplish the following:

A. Visually inspect all generator power feeder cable installations at the firewall receptacles for evidence of arcing, burning, or chafing. If damage is found, prior to further flight, replace the damaged feeder cable.

B. Modify each generator power feeder firewall connector installation in accordance with the Accomplishment Instructions of McDonnell Douglas MD-80 Alert Service Bulletin A24-113, dated October 30, 1989.

C. An alternate means 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, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Avionics Inspector (PAI), who will either concur or comment and then send it to the Manager, Los Angeles Aircraft Certification Office.

D. 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.

All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Business Unit Manager, Technical Publications, C1-HCW (54-60). This document may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California.

This amendment (39-6580, AD 90-09-01) becomes effective on May 29, 1990.


FOOTER:

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Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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