AD 95-01-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | Airworthiness Directives; Boeing Model 747-100 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | Airworthiness Directives; Boeing Model 747-100 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | Airworthiness Directives; Boeing Model 747-100 Series Airplanes |
Unsafe Condition
Fastener holes in the lap joint and longeron of the fuselage, if not corrected, could reduce the fatigue life of the fuselage in the affected area.
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Required Actions
Conduct a one-time detailed close visual inspection of the lap joint of stringer 4L from fuselage stations 1660 to 2040 to detect discrepancies such as corrosion, cracking, open holes, misdrilled holes, and freeze plugs in the fuselage skin and internal stringer or longerons. Repair any discrepancies using FAA-approved methods. Submit a report of findings to the FAA. Modify the longitudinal lap joint in the upper body skin of stringer 4L at specified fuselage stations per GATX/Airlog Service Bulletin 94-MG-1000-009.
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Compliance Time
Effective January 23, 1995
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Affected Aircraft
Boeing Model 747-100 series airplanes equipped with freighter conversion modification installed in accordance with Supplemental Type Certificate (STC) SA2322SO.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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