AD 92-22-08 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
| aircraft | The Boeing Company | DC-9-32 (VC-9C) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series Airplanes, DC-9-80 Series Airplanes, MD-88 Airplanes, and C-9 (Military) Airplanes |
Unsafe Condition
Structural failure due to corrosion.
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Required Actions
Complete each corrosion task specified in Section 4 of McDonnell Douglas Document MDC K4606 within the compliance times. Repeat each task within the R interval specified in the document. Report Level 2 and Level 3 corrosion findings quarterly to McDonnell Douglas. Submit reports of Level 3 corrosion to the FAA within 7 days and implement approved corrective actions. Operators must establish schedules for corrosion tasks before further flight.
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Compliance Time
Initial compliance must occur no later than IA plus the R interval for areas not yet at IA one year after the AD effective date. For areas exceeding IA one year after effective date, within the R interval from that date. Airplanes 20+ years old must complete all areas within one R interval or six years, whichever comes first. Minimum rate of one area per year for areas exceeding IA.
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Affected Aircraft
All Model DC-9 series airplanes, including DC-9-80 series, MD-88, and C-9 (Military) 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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