AD 2006-20-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | 717-200 | Airworthiness Directives; McDonnell Douglas Model 717-200 Airplanes |
Unsafe Condition
The aluminum foil strip on the nylon base of the ground clamps can fracture or separate from the base, potentially preventing electrical energy from a lightning strike from dissipating to the airplane structure, which could result in a fuel tank explosion.
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Required Actions
Replace the lightning critical clamp bases of the fuel tank vent system with improved clamp bases. Check the electrical bond of the modified self-bonding mounting clamps after replacement. Repair any failed electrical bond before further flight, either according to the service bulletin or an approved method.
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Compliance Time
Within 78 months after the effective date of this AD
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Affected Aircraft
McDonnell Douglas Model 717-200 airplanes, certificated in any category, as identified in Boeing Service Bulletin 717-28-0004, Revision 3, dated June 21, 2006.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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