AD 95-15-52
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | Airworthiness Directives; Boeing Model 747-100 and -200 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | Airworthiness Directives; Boeing Model 747-100 and -200 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | Airworthiness Directives; Boeing Model 747-100 and -200 Series Airplanes |
| aircraft | The Boeing Company | 747-200B Series | Airworthiness Directives; Boeing Model 747-100 and -200 Series Airplanes |
| aircraft | The Boeing Company | 747-200C Series | Airworthiness Directives; Boeing Model 747-100 and -200 Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | Airworthiness Directives; Boeing Model 747-100 and -200 Series Airplanes |
Unsafe Condition
Failure of the longitudinal floor beams between Body Stations 1265 and 1480 may cause the keel beam to fail and result in rupture of the fuselage due to inadequate strength when loaded to Supplemental Type Certificate-allowed limits under specified airspeed and load factor conditions.
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Required Actions
Revise the Airplane Flight Manual (AFM) and Airplane Weight and Balance Supplement to restrict cargo loading to a suitable level. Restrictions may be removed after modifying the longitudinal floor beams in accordance with an FAA-approved method.
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Compliance Time
Effective August 25, 1995, except for those to whom it was made immediately effective by telegraphic AD T95-15-52 issued July 14, 1995.
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Affected Aircraft
Boeing Model 747-100 series with STCs SA2322SO, SA2323SO, or SA5199NM; and Model 747-200 series with STCs SA4227NM-D or SA5759NM.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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