AD 88-24-08 R2
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, and C-9 (Military) Series Airplanes |
Unsafe Condition
Fatigue cracking and subsequent failure of the fuselage skin or longerons.
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Required Actions
Perform initial external low and high frequency eddy current inspections of the fuselage skin and longerons from longeron 7 left through 7 right within specified fuselage stations as per Service Bulletin A53-230, Revision 3. Conduct aided visual inspections of longerons 10 left through 10 right from inside the fuselage, and repeat inspections at intervals not exceeding 5,800 or 2,500 landings depending on chosen option. Repair detected cracks per the service bulletin and consider rework drawing SR09530132 for terminating actions.
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Compliance Time
Prior to the accumulation of 45,000 landings or within 30 days after January 28, 1989, whichever occurs later, and subsequent intervals as specified.
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Affected Aircraft
McDonnell Douglas DC-9-10, -20, -30, -40, -50, and C-9 (Military) series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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