AD 2003-26-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-100 | Airworthiness Directives; Boeing Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes |
Unsafe Condition
Rupture of the potable water tank during flight, which could result in structural damage to the airplane and its inability to sustain flight loads.
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Required Actions
Replace the existing pressure relief valve on the potable water tank with a new, improved pressure relief valve (P/N RV05-362), made of stainless steel and non-adjustable. For certain airplanes, modify certain piping to re-locate the pressure relief valve.
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Compliance Time
Within 18 months after the effective date of this AD.
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Affected Aircraft
Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes; line numbers 1 through 2696 inclusive; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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