AD 96-16-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 Series Airplanes; Model DC-9-81 (MD-81), DC-9-82 (MD-82) and DC-9-83 (MD-83) Series Airplanes; and C-9 (Military) Airplanes |
Unsafe Condition
Fatigue cracking in the area of the attach tees of the ventral aft pressure bulkhead could lead to structural failure and subsequent rapid depressurization of the airplane.
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Required Actions
Conduct revised inspections and repairs per Service Bulletin A53-232, and perform terminating action. Operators may choose between Option I (visual and low frequency eddy current inspections) or Option II (high and low frequency eddy current inspections).
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Compliance Time
Effective September 4, 1996.
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Affected Aircraft
McDonnell Douglas Model DC-9-10, -20, -30, -40, -50, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83) series airplanes; and C-9 (military) airplanes equipped with a ventral aft pressure bulkhead, as listed in Service Bulletin A53-232, Revision 2.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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