AD 87-15-08 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
| aircraft | The Boeing Company | DC-9-87 (MD-87) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
Unsafe Condition
Fractures in P/N 7958533-517 (Hartwell P/N H2816-3) cowl door latch assemblies, particularly at the attachment hook, could result in cowl door separation during flight.
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Required Actions
Within 7 days after the effective date, visually inspect cowl door latch assemblies for fractures in accordance with ASB A71-42. If fractures are found, replace all latch assemblies on the affected door before further flight. Repeat inspections every 7 days until replaced with P/N 7958533-519 latch assemblies. For fuselage 1237-1276, install new P/N 7958533-519 latches within 45 days. For fuselage 1277-1368, install within 70 days.
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Compliance Time
Within the specified timeframes: 7 days for initial inspection, 45 days for fuselages 1237-1276, and 70 days for fuselages 1277-1368, all after April 25, 1988.
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Affected Aircraft
McDonnell Douglas DC-9-80 series (MD-80) airplanes, Fuselage Numbers 1237 through 1368, including models DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87).
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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