AD 2007-19-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Airplanes |
Unsafe Condition
Overheating of the heater tape on potable water fill and drain lines, which could ignite accumulated debris or contaminants on or near the potable water fill and drain lines, resulting in a fire in the airplane.
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Required Actions
Repetitively inspect the potable water and drain lines in the cargo compartments for indications of overheating of the heater tape, exposed foam insulation, missing or damaged protective tape, or debris around the potable water fill and drain lines. Perform corrective action if necessary. Eventually install new ribbon heaters to terminate repetitive inspections.
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Compliance Time
Within the applicable timeframes specified in the service bulletin (not explicitly stated in the summary).
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Affected Aircraft
Boeing Model 747 airplanes, certificated in any category, as identified in Boeing Service Bulletin 747-30A2080, Revision 3, dated June 14, 2007. Certain airplanes are removed from applicability, including Model 747-400 passenger airplanes converted to the 747-400 BCF configuration, except for the first such configured airplane (variable number RT456).
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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