AD 74-18-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lavia Argentina S.A. (Laviasa) | PA-25-235 | Airworthiness Directives; Piper Models PA-25-235 and PA-25-260 Airplanes |
| aircraft | Lavia Argentina S.A. (Laviasa) | PA-25-260 | Airworthiness Directives; Piper Models PA-25-235 and PA-25-260 Airplanes |
Unsafe Condition
Fuel unbalance and fuel line chafing due to improper installation of fuel tank vents and grommets, leading to potential fuel line damage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install vent line clamp assembly with specified fasteners, position fuel tank vents 3/4 inch below wing fabric, inspect and secure fuel line grommets, replace damaged lines, correct improperly installed grommets, and cut access openings if necessary to ensure proper installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours' time in service after the effective date of this AD
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Affected Aircraft
Piper Models PA-25-235 and PA-25-260 airplanes, serial numbers 25-7405573 to 25-7405673 inclusive
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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