# AD 88-20-05: Generator Power Feeder Cable - Type: Airworthiness directive - Status: Historical - Products: McDonnell Douglas DC-9-81, DC-9-82, DC-9-83, DC-9-87 and MD-88 - Effective: October 31, 1988 - Superseded by: [AD 94-09-02](https://openairdocs.org/ad/94-09-02) - Product type: Aircraft, Large airplane - Amendment: 39-6022 - Registered aircraft: 100 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0E4865C79677BB6786256A1E004B42B3.0001 - DRS record last changed: August 7, 2025 - Page: https://openairdocs.org/ad/88-20-05 ## The airworthiness directive 88-20-05 MCDONNELL DOUGLAS: Amendment 39-6022. Applies to McDonnell Douglas Model DC-9-81, -82, -83, -87, and MD-88 airplanes, certificated in any category, as listed in McDonnell Douglas Model MD-80 Service Bulletins 24-94, Revision 1, dated May 28, 1987, and 24-100, dated March 30, 1988. Compliance required within 12 months after the effective date of this airworthiness directive (AD), unless previously accomplished. To eliminate a potential source of fire ignition from the generator power feeder cable electrically shorting, accomplish the following: A. For airplanes identified in McDonnell Douglas MD-80 Service Bulletin 24-94, Revision 1, dated May 28, 1987: Inspect for power feeder cable damage, and repair the cable, if necessary; then modify the cable installation, in accordance with the Accomplishment Instructions of that service bulletin. B. For airplanes identified in McDonnell Douglas MD-80 Service Bulletin 24-100, dated March 30, 1988: Modify the power feeder cable installation, in accordance with the Accomplishment Instruction of that service bulletin. 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 Maintenance Inspector (PMI), who may add any comments and then send it to the 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 documents from the manufacturer may obtain copies upon request to the McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director, Publications and Training, C1-L65 (54-60). These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at 3229 East Spring Street, Long Beach, California. This amendment, 39-6022, becomes effective October 31, 1988. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A6WE](https://openairdocs.org/tcds/A6WE): The Boeing Company; names 5 of 25 models: MD-88, DC-9-81 (MD-81), DC-9-83 (MD-83), DC-9-87 (MD-87), DC-9-82 (MD-82) ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 100 (100 by airframe model, 0 by engine model) - Makers: Mcdonnell Douglas 99, Douglas 1 Models with the most aircraft: - [Mcdonnell Douglas DC-9-83(MD-83)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-83-md-83): 49 aircraft (airframe model) - [Mcdonnell Douglas DC-9-82(MD-82)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82-md-82): 22 aircraft (airframe model) - [Mcdonnell Douglas MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88): 14 aircraft (airframe model) - [Mcdonnell Douglas DC-9-87](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87): 13 aircraft (airframe model) - [Douglas DC-9-83](https://openairdocs.org/model/douglas-dc-9-83): 1 aircraft (airframe model) - [Mcdonnell Douglas DC-9-87 (MD-87)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87-md-87): 1 aircraft (airframe model) All 7 models: https://openairdocs.org/ad/88-20-05/models.md Every aircraft: https://openairdocs.org/ad/88-20-05/aircraft.md ## Related documents - [AD 94-09-02](https://openairdocs.org/ad/94-09-02): Generator Power Feeder Cable ยท Boeing DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83) and 2 more. Effective May 20, 1994. Supersedes this AD Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.