AD 75-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-100B Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-100B SUD Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-200B Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-200C Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-200F Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-300 Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-400 Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-400D Series | BOEING Model 747 Series Aircraft |
| aircraft | The Boeing Company | 747-400F Series | BOEING Model 747 Series Aircraft |
Unsafe Condition
Failure of the lavatory fire capacitor assembly could result in a lavatory fire.
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Required Actions
Remove the capacitor assembly from the toilet flush motor and cap exposed wires in accordance with Boeing Service Bulletin 747-38-2021 or later FAA-approved revisions.
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Compliance Time
Within 300 hours time in service from the effective date of this AD
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Affected Aircraft
Boeing Model 747 series aircraft certificated in all categories
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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