AD 64-15-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-8-11 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-12 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-21 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-31 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-32 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-33 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-41 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-42 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-43 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
| aircraft | The Boeing Company | DC-8-51 | Airworthiness Directives; DOUGLAS DC-8 Series Aircraft (Except Model DC-8F) |
Unsafe Condition
Fatigue cycle testing of flap system components (flap cylinder rod end bearings and bolt, compensating flap actuating link) showed a need for new service life limits to prevent failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Retire specified flap system components (P/N 4648686-501, 4648686-503, 2645104, 3648268, 3648269, 3648270) based on time in service or landings. Inspect and rework compensating flap actuating links per Douglas Service Bulletin 27-144. Retire reworked parts after specified additional service limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 500 hours' time in service after the effective date or prior to accumulating specified hours/landings, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas DC-8 Series Aircraft (except Model DC-8F) with specified part numbers: 4648686-501, 4648686-503, 2645104, 3648268, 3648269, 3648270.
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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