AD 93-07-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-32F (C-9A) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32F (C-9B) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-33F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-34 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-34F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-41 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-51 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-33F, -34, -34F, -41, and -51 Series Airplanes, and C-9 (Military) Airplanes |
Unsafe Condition
Main landing gear wheel assembly separation during wheel rotation due to incorrect hardness of the wheel spacer retainer assemblies or improper installation of the anti-rotation pin.
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Required Actions
Conduct a one-time inspection of the main landing gear wheel spacer retainer assemblies for correct hardness and proper installation of the anti-rotation pin. If within limits, mark the assembly with 'S/B 32-228'. If not, replace the assembly and mark it. Only install assemblies marked 'SB 32-228'.
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Compliance Time
Within 2,000 landings or 18 months after the effective date of this AD, whichever occurs first.
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Affected Aircraft
McDonnell Douglas DC-9-33F, -34, -34F, -41, and -51 series airplanes, and C-9 (military) airplanes as listed in Service Bulletin 32-228, Revision 1.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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