# AD 87-15-08 R1: Cowl Door Latches - Type: Airworthiness directive - Status: Current - Products: Boeing DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83) and DC-9-87 (MD-87) - Effective: April 25, 1988 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-5876 - Registered aircraft: 86 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/15C786CBFA07B875862569F2006C8349.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/87-15-08-R1 ## The airworthiness directive 87-15-08 R1 MCDONNELL DOUGLAS: Amendment 39-5691 as amended by Amendment 39-5876. Applies to McDonnell Douglas Model DC-9-80 (MD-80) series airplanes, Fuselage Numbers 1237 through 1368, certificated in any category. Compliance required as indicated, unless previously accomplished. To ensure the integrity of the cowl door latches, accomplish the following: A. Within 7 days after the effective date of this AD, unless already accomplished within the last 7 days, visually inspect P/N 7958533-517 (Hartwell P/N H2816-3) cowl door latch assemblies for fractures, paying particular attention to the attachment hook. Perform this inspection in accordance with McDonnell Douglas Alert Service Bulletin A71-42, dated June 24, 1987 (hereinafter referred to as ASB A71-42), or later FAA-approved revisions. 1. If fracture is found, prior to further flight replace all latch assemblies on the affected door. 2. If fracture is not found, repeat the visual inspections of thecowl door latches at intervals not to exceed 7 days, until such time as P/N 7958533-517 (Hartwell P/N H2816-3) latch assemblies are replaced with new P/N 7958533-519 (Hartwell P/N H2816-5) latch assemblies in accordance with ASB A71-42. B. For fuselage numbers 1237 through 1276 only: Within 45 days after the effective date of this AD, install new latch assemblies P/N 7958533-519 (Hartwell P/N H2816-5), in accordance with ASB A71-42. C. For fuselage numbers 1277 through 1368 only: Within 70 days after the effective date of this AD, install new latch assemblies, P/N 7958533-519 (Hartwell P/N H2816-5), in accordance with ASB A71-42. D. Installation of new cowl door latches, P/N 7958533-519 (Hartwell P/N 2816-5), constitutes terminating action for this AD. E. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region. F. 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 information from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director of Publications, C1-L00 (54-60). These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California. Amendment 39-5691 (AD 87-15-08) became effective August 6, 1987. This amendment, 39-5876, becomes effective April 25, 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 4 of 25 models: 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: 86 (86 by airframe model, 0 by engine model) - Makers: Mcdonnell Douglas 85, 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 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 5 models: https://openairdocs.org/ad/87-15-08-R1/models.md Every aircraft: https://openairdocs.org/ad/87-15-08-R1/aircraft.md 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.