AD 76-04-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-8-11 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-12 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-21 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-31 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-32 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-33 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-41 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-42 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-43 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
| aircraft | The Boeing Company | DC-8-51 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8 Series Airplanes except -62, -62F, -63, and -63F |
Unsafe Condition
Fatigue failure of the wing front spar lower cap, P/N 5597838-1 or -2.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the wing front spar lower cap for cracks per McDonnell Douglas DC-8 Alert Service Bulletin A57-82 or approved method. Repair before further flight if cracks exceed limits using specified service rework drawings or approved equivalents.
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Compliance Time
Within the next 1600 hours time in service after the effective date or before 30,000 hours total time in service, whichever occurs later (for replaced fasteners), or within the next 3200 hours time in service after the effective date or before 30,000 hours total time in service, whichever occurs later (for original fasteners). Thereafter at intervals not exceeding 4200 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MCDONNELL DOUGLAS DC-8 Series airplanes except -62, -62F, -63, and -63F, certificated in all categories.
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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