AD 83-06-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F (C-9A) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-32F (C-9B) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-33F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-34 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-34F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
| aircraft | The Boeing Company | DC-9-41 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-30, -40, and -50 Series Airplanes |
Unsafe Condition
Failure of the main landing gear support structure due to improperly heat treated restrictor support tubes.
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Required Actions
Perform an eddy current inspection of the restrictor support tube per McDonnell Douglas Service Bulletin 32-186. Replace restrictor tubes if improperly heat treated. Use special flight permits under FAR 21.197/21.199 to operate to a base for compliance.
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Compliance Time
prior to December 14, 1983
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Affected Aircraft
McDonnell Douglas DC-9-30, -40, -50 series airplanes with MLG strut serial numbers R4429N, R4430-R4436, R4438-R4449, R4462-R4469, R5415-R5420, R7475, R7476, R7478-R7526, R8734, R8736, R8742, R8743.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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