AD 79-06-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200B Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200C Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-300 Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400 Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400D Series | BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400F Series | BOEING Model 747 Series Airplanes |
Unsafe Condition
Abrasion of fuel tank boost pump electrical wires in main fuel tanks Numbers 2 and 3.
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Required Actions
Inspect, repair, and modify the Number 1 and Number 4 main fuel tank boost pump wiring in the conduits in main fuel tanks Numbers 2 and 3 in accordance with Boeing Alert Service Bulletin 747-28-A2092 or later FAA approved revision. Equivalent inspections, repairs, and modifications may be used when approved.
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Compliance Time
Within 750 hours time in service or two (2) months after the effective date of this Airworthiness Directive, whichever comes first.
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Affected Aircraft
Boeing Model 747 series airplanes certificated in all categories, including 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, and other 747-200 series models.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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