AD 89-25-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-13 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-14 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-15F | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-9-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-10, -20, -30, -40, -50, -81, -82 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, -81, -82 and C-9 (Military) Series Airplanes |
Unsafe Condition
Crack propagation in window belt panels and adjacent structure could result in rapid cabin depressurization.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect left- and right-hand window belt panels and adjacent structure for cracks using eddy current methods per ASB A53-142. Repeat inspections at intervals not exceeding 800 or 20,000 landings (depending on fuselage number) until preventive modification is installed. Repair cracks before further flight per specified drawings or install placard prohibiting pressurized flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the occurrence of the latest of: 30,000 landings, 2,500/10,000 landings since last AD 85-19-02 inspection, or 500 landings after AD effective date (December 18, 1989).
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Affected Aircraft
McDonnell Douglas DC-9-10, -20, -30, -40, -50, -81, -82 and C-9 (Military) series airplanes, fuselage numbers 1 through 1157.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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