AD 87-12-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83 (MD-81, -82, -83) Series Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83 (MD-81, -82, -83) Series Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-81, -82, -83 (MD-81, -82, -83) Series Airplanes |
Unsafe Condition
Failure of the main landing gear upper torque link attach bolts (P/N 3935363) could result in loss of main landing gear structural integrity.
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Required Actions
Within 7 days after the effective date, perform a visual inspection of the bolts, washers, and nuts per SB A32-220. If missing, replace with new or serviceable parts before flight. Repeat inspections every 7 days until paragraph B/C is done. Within 90 days, perform ultrasonic inspections every 180 days until magnetic particle inspection (terminating action) is completed. Replace parts if defects found.
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Compliance Time
Within 7 days after the effective date of this AD, and within 90 days after the effective date for paragraph B.
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Affected Aircraft
McDonnell Douglas DC-9-81, -82, -83 (MD-81, -82, -83) series airplanes, Fuselage Numbers 909 through 1350.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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